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The angle subtended by an arc at the centre of a circle is double the angle subtended by it at any point on the remaining part of the circle.give me the proof of this theorem !??what is the difference between concyclic and cyclic quadrilaterals?

if two non parallel sides of a trapezium are equal prove that it is cyclic

Q. The range of x, 32, 41 ,62, 64, and 71 is 45. Which of the following can be the value of X?

(A) 32 (B) 47

(C) 48 (D) 26

Prove that the quadrilateral formed by internal angle bisectors of a cyclic quadrilateral is also cyclic.

Plz

and answer the following question: "If two equal chords of a circle intersect within the circle, prove that the segments of one chord are equal to corresponding segments of the other chord."explainAB and CD are two parallel chords of a circle such that AB = 10cm and CD = 24. The chords are on opposite sides of the centre and distance between them is17cm. Find the radius of the circle

Prove that angles in the same segment of a circle are equal

2 diameters of a circle intersect each other at right angle.Prove that quadrilateral formed by joining their end points is a square.In a circle of radius 5 cm,AB and AC are two chords such that AB = AC = 6 cm.Find the length of chord BC.

a circle has radius root 2 cm. It is divided into 2 segments by a chord of length 2cm. proved that angle subtended by the chord at the point in measure segment is 45 degree

_{1 }AND O_{2 ARE THE CENTRES OF TWO CONGRUENT CIRCLES INTERSECTING EACH OTHER AT POINTS C AND D. THE LINE JOINING THEIR CENTRES INTERSECTS THE CIRCLES AT A AND B SUCH THAT AB >}O_{1}O_{2. }IF CD = 6 CM AND AB = 12 CM FIND THE RADIUS OF THE EITHER CIRCLE.A circular park of radius 20m is situated in a colony. Three boys Ankur, Syed and David re sitting at equal distance on its boundary each having a toy telephone in their hand to talk each other. Find the length of the string of each phone....This is a text ques. (Exrcise. 10.4 ques no. 6) Any one plz help me to answer this!

Three girls Reshma, Salma and Mandip are playing a game by standing on a circle of radius 5 m drawn in a park. Reshma throws a ball to Salma, Salma to Mandip, Mandip to Reshma. If the distance between Reshma and Salma and between Salma and Mandip is 6 m each, what is the distance between Reshma and Mandip?

[{i have read the solution for this but i am not understanding}]If P, Q and R are mid points of sides BC, CA and AB of a triangle ABC, and Ad is the perpendicular from A on BC, prove that P, Q , R and D are concyclic.

plzz solve urgently!!!!

Prove that The sum of either pair of opposite angles of a cyclic

quadrilateral is 180º.

AB ia a diameter of the circle,CD is a chord equal to the radius of the circle.AC and BD when extended intersect t a point E. Prove that angle AEB=60 DEGREE.

Two chords AB and CD of lengths 5 cm 11cm respectively of a circle are parallel to each other and are on opposite sides of its centre. If the distance between AB and CD is 6 cm, find the radius of the circle.

two circle of radii 5cm and 3cm intersect at two points and the distance between their centres is 4 cm .find the length of common chord.Find the area of a cyclic quadrilateral whose sides are 8 cm,10 cm,12 cm and 16 cm.

A- ROOT 15015

B- root 30030

C-root 10010

D- none of these

PLZ SHOW THE ENTIRE WORKING

two chord AB and AC of a circle are equal.prove that the bisector of angle BAC passes through the centre O of the circle

prove that the perpendicular bisectors of two chords of a circle intersect at the centre.

if the tangents at A B and C of circumcircle of the triangle meet the opposite sides in D Eand F such that they are collinear then prove BD : CD = BA^2 : AC^2

ABCD is a cyclic quadrilateral in which AC and BD are its diagonals. If angleDBC = 55° and angle BAC = 45°, find BCD.

If two circles intersect at two points, then prove that their centres lie on the perpendicular bisector of the common chord.

ABC is a right angle triangle, right angled at A. A circle is inscribed in it. The length of two sides containing angle A is 12cm and 5cm find the radius.

PLZ GIVE ME IMPORTANT QUESTIONS OF MATHS

rnPLZ HELP MY MATHS EXAM IS ON MONDAY

ABC and ADC are two right triangles with common hypotenuse AC. Prove that ∠CAD = ∠CBD.

in the given figure isxIn a circle with centre O,chords AB and CD intersect inside the circumference at E.Prove that ∠AOC + ∠BOD = 2∠AEC

OD is perpendicular to chord AB of a circle whose centre is O. if BC is a diameter prove that CA=2OD

in the figure, chord AB of circle with centre O, is produced to C such that BC = OB . CO is joined and produced to meet the circle at D.If angle ACD = y and angle AOD = x,show that x = 3y.

AB and AC are two chords of a circle of radius r such that AB = 2AC. if p and q are distances of AB and AC from the centre , prove that 4q

^{2 }= p^{2}= 3r^{2}In the figure ABCE is a cyclic quadrilateral O is the centre of the circle If angle CEF=70 degree Then find degree ABC and angle ADC.

X &Y are centres of circles of radius 9cm, 2cm and XY=17cm.Z is the centre ofcircle of radius r cm, which touches the above circle externally given that XZY=90degree. Write an equation inr and solve it for r

If two sides of a cyclic quadrilateral are parallel , prove tha the remaining two sides are equal and the diagonals are also equal

determine (1)angle ACD (2)angle DAC (3)angle ABD

Two congruent circles intersect each other at points A and B. Through A any line segment PAQ is drawn so that P, Q lie on the two circles. Prove that BP = BQ.

if two intersecting chords of a circle make equal angles with the diameter passing through their point of intersection , prove that the chords are equal.

Two circles whose centres are O and O' intersect at P. Through P, line "l" parallel to OO' intersecting the circles at C and D is drawn. Prove that CD=2OO'.

If diagonals of a cyclic quadrilateral are diameters of the circle through the vertices of the quadrilateral, prove that it is a rectangle.

an equilateral triangle of side 9 cm is inscribed in a circle.Find the radius of the circle

If two equal chords intersect within the circle,prove that the line joining the point of intersection to the centre makes equal angles with the chords.

prove that There is one and only one circle passing through 3 given non-collinear points

prove that the line joining the mid point of a chord to the center of the circle passes through the mid point of the corresponding minor arc

ABCD is a cyclic quadrilateral with O as centre of the circle.if m angleBOD =136,find m angle BCD?

In the given figure, O is the centre and AE is the diameter of the semicircle

ABCDE. If AB = BC and AEC = 50, then find

(a) CBE (b) CDE (c) AOB. Prove that BO||CE.

ABCD is a square of side lenght 1 unit. A circle is tangent to two sides of ABCD and passes through exactly one of verices. the radius of circle is

a) [2+ 2

^{1/2}] b) 2- 2^{1/2}c) 0.5 d) 3/2Prove that the mid - point of the hypotenuse of a right triangle is equidistant from its vertices.Bisectors of angle A & C of a cyclic quadrilateral ABCD intersect a circle through A,B,C,D at E&F respectively. Proove that EF is the diameter of the circle.

please add a video.......

Prove that the angle in a semi-circle is a right angle.

plz explain this qstn with a videoTwo circles of radii 5 cm and 3 cm intersect at two points and the distance between their centres is 4 cm. Find the length of the common chord.Define major sector and minor sector

A circle has two parallel chords on the both sides of the centre.chord ab =16cm and cd=12cm and the distance between them=14 cm.Find the radius of the circle

A chord of a circle is equal to the radius of the circle. Find the angle subtended by thre chord at a point on the minor arc and also at a point on the major arc.

if the circles are drawn taking two sides of a traingle as diameters ,prove that the point of intersection of these circles lie on the third side

prove that line segment joining midpoints of two equal chords of a circle makes equal angles with the chord

pl expalin me dis question properly of ex 10.4 Two circles of radii 5 cm and 3 cm intersect at two points and the distance between their centres is 4 cm. Find the length of the common chord.

ABC IS A TRIANGLE IN WHICH AB=AC. P IS A POINT ON AC. THROUGH C A LINE IS DRAWN TO INTERSECT BP PRODUCED AT Q SUCH TAHT ANGLE ABQ=ANGLE ACQ. PROVE THAT

ANGLE AOC=90 DEGREES+ HALF OF ANGLE BAC.

How to find the root of the 28 & 3, along with the method . i will be thankfull if you answer.

if the sum of a pair of opposite angles of a quadrilateral is 180,then show that the quadrilateral is cyclic

a line segment AB is of length 5cm. draw a circle of radius 4 cm passing through A and B. can you draw a circle of radius 2 cm passing through A and B? give reasonin support of your answer.

If two equal chords of a circle intersect within the circle, prove that the segments of one chord are equal to corresponding segments of the other chord.

I din't understand the answer give. Please explain me again! :O

A chord of a circle divides the circular region in two parts, te region which contains the centre is called_______.

a) Minor arc.

b) Major arc.

c) Minor Segment.

d) Major Segment.

prove that diameter is the longest chord in the circle

equal chords AB and CD of a circle with centre O cut each other at right angles at E. If M and N are mid points of AB and CD,then prove that OMEN is a square

In an isosceles triangle ABC with AB = AC a circle passing through B and C intersect the sides AB and AC at D and E respectively.Prove that DE||BC.

proove that the perpendicular bisctor of two chords of a circle intersect at its centre

ulike model test paper 4 solutions

In a circle of radius 5cm, AB AC are two chords, such that AB=AC=6cm. find the length of the chord BC.

Prove that equal chords of a circle subtend equal angles at the centre.

Two circles of radii 10cm and 8cm intersect each other and length of the common chord is 12cm.Find the distance between their centres.

prove that bisectors of angles formed by producing opposite sides of cyclic quadrilateral (provided they are not parallel) intersect each other at right angle.

is there any way in meritnation that we can talk with meritnation experts so that we can clear our doubts more nicely? does meritnation provides us with online teaching ?