Tangents PQ and PR are drawn to a circle such that angle RPQ= 30 degreeA chord RS is drawn parallel to tangent PQ.Find angle RQS...??? ANSFAST...
ab and cd are common tangents to two circles of unequal radii. prove that ab=cd
From a point P, two tangents PA and PB are drawn to a circle with centre O. If OP = diameter of the circle, show that the triangle APB is equilateral.
In a right triangle ABC in which angle B = 90', a circle is drawn with AB as diameter intersecting the hypotenuse ACat P. Prove that the tangent to the circle at P visects BC.
prove that the parallelogram circumscribing a circle is a rhombus.???
PAB is a secant and PT is a tangent. Prove that PA X PB =PT2
the difference of squares of two numbers is 180. the square of smaller no. is 8 times the larger number. find the two numbers .
The sides AB,BC,CA of triangle ABC touch a circle with centre o and radius r at P,Q,R respectively.Prove that
(1) AB+CQ= AC+BQ
(2) Area (triangle ABC) = 1/2 (perimeter of triangle ABC) x r (radius)
A circle is inscribed in a triangle ABC, having sides 8 cm , 10 cm and 12 cm. Find AD , BE and CF ( these 3 are altitudes of triangle ABC).
in two concentric circles, prove that all chords of the outer circle which touches the inner circle are of equal lengths.
Triangle ABC is isosceles in which AB=AC circumscribed about a circle. Prove that base is bisected by the point of contact.
Equal circles with centres O and O' touch each other at X. OO' produced to meet a circle with centre O , at A. AC is a tangent to the circle whose centre is O. O'D is perpendicular to AC. Find the value of DO'/CO.....cAn aNy1 hElP MeH WiD thIs qUeStIoN pLs...???????
If from a external point P of a circle with centre O, two tangents PQ and PRare drawn such that angle of QPR=120. prove tht 2PQ=PO.
Q1) From an external point P, tangents PA and PB are drawn to a circle with cente O.If CD is the tangent to the circle at a point E and PA=14cm, find the perimeter of triangle PCD.
Q2) a circle touches all the four sides of a quadrilateral ABCD whose three sides are AB=6cm, BC=7cm, and CD=4cm find AD.
if possible u pls. explain me these sums through video.
The tangent at pt C of a circle and a diameter AB when extended intersect at P.If angle PCA = 110 find angle CBA
Tangents PQ and PR are drawn to a circle such that angle RPQ= 30 degree
A chord RS is drawn parallel to tangent PQ.
Find angle RQS...??? ANSFAST...
ab and cd are common tangents to two circles of unequal radii. prove that ab=cd
From a point P, two tangents PA and PB are drawn to a circle with centre O. If OP = diameter of the circle, show that the triangle APB is equilateral.
In a right triangle ABC in which angle B = 90', a circle is drawn with AB as diameter intersecting the hypotenuse ACat P. Prove that the tangent to the circle at P visects BC.
prove that the parallelogram circumscribing a circle is a rhombus.???
PAB is a secant and PT is a tangent. Prove that PA X PB =PT2
the difference of squares of two numbers is 180. the square of smaller no. is 8 times the larger number. find the two numbers .
The sides AB,BC,CA of triangle ABC touch a circle with centre o and radius r at P,Q,R respectively.Prove that
(1) AB+CQ= AC+BQ
(2) Area (triangle ABC) = 1/2 (perimeter of triangle ABC) x r (radius)
A circle is inscribed in a triangle ABC, having sides 8 cm , 10 cm and 12 cm. Find AD , BE and CF ( these 3 are altitudes of triangle ABC).
in two concentric circles, prove that all chords of the outer circle which touches the inner circle are of equal lengths.
Triangle ABC is isosceles in which AB=AC circumscribed about a circle. Prove that base is bisected by the point of contact.
Equal circles with centres O and O' touch each other at X. OO' produced to meet a circle with centre O , at A. AC is a tangent to the circle whose centre is O. O'D is perpendicular to AC. Find the value of DO'/CO.....cAn aNy1 hElP MeH WiD thIs qUeStIoN pLs...???????
If from a external point P of a circle with centre O, two tangents PQ and PRare drawn such that angle of QPR=120. prove tht 2PQ=PO.
Q1) From an external point P, tangents PA and PB are drawn to a circle with cente O.If CD is the tangent to the circle at a point E and PA=14cm, find the perimeter of triangle PCD.
Q2) a circle touches all the four sides of a quadrilateral ABCD whose three sides are AB=6cm, BC=7cm, and CD=4cm find AD.
if possible u pls. explain me these sums through video.
The tangent at pt C of a circle and a diameter AB when extended intersect at P.If angle PCA = 110 find angle CBA