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Akhilesh Kumar
Subject: Math
, asked on 14/2/18
Answer fast
28.
In figure, equal chords AB and CD intersect each other at Q at right angle P and R the mid-points of AB and CD respectively. Show that OPQR is a square.
Answer
1
Bitan
Subject: Math
, asked on 14/2/18
I can't understand the question
1) If a line intersects to concentric circle with centre O at A, B, C, and D. prove that AB = CD.
Answer
1
Vnv Sai Krishna
Subject: Math
, asked on 14/2/18
Solve this :
$10.\mathrm{Figure}16.201,\mathrm{ABCD}\mathrm{is}\mathrm{a}\mathrm{quadrilateral}\mathrm{inscribed}\mathrm{in}\mathrm{a}\mathrm{circle}\mathrm{with}\mathrm{centre}\mathrm{O},\mathrm{CD}\mathrm{is}\mathrm{produced}\mathrm{to}\mathrm{E}\mathrm{such}\mathrm{that}\angle \mathrm{AED}=95\xb0\mathrm{and}\angle \mathrm{OBA}=30\xb0.\mathrm{Find}\angle \mathrm{OAC}.$
Answer
1
Ambuj Agarwal
Subject: Math
, asked on 10/2/18
A chord of length 16 cm is drawn in a circle of radius 10 cm. Find the distance of the chord from the centre of the circle.
Answer
1
Anushka Mishra
Subject: Math
, asked on 8/2/18
In a circle of radius 18cm AB and AC are 2 chords such that AB=AC=12cm. Find the length of BC
Answer
2
Aryan Panda
Subject: Math
, asked on 7/2/18
Can you tell me some interesting facts on circles.
Answer
2
Saksham Gupta
Subject: Math
, asked on 6/2/18
PLEASE SOLVE AND.EXPLAIN THIS QUESTION 14
Q.14. In the given figure, O is the centre of the circle. Find the value of x.
Answer
2
Sneha Maity
Subject: Math
, asked on 4/2/18
Solve this:
Q. A triangle ABC is inscribed in a circle, the bisectors of whose angle meet the circumference at X, Y and Z. Determine the angles X, Y and Z respectively.
(A) 90° –
$\frac{\mathrm{A}}{2},90\xb0-\frac{\mathrm{B}}{2},90\xb0-\frac{\mathrm{C}}{2}$
(B) 90° , 60° , 30°
(C)
$\frac{\mathrm{A}}{2},\frac{\mathrm{B}}{2},\frac{\mathrm{C}}{2}$
(D)
$\frac{\mathrm{B}}{2},\frac{\mathrm{A}}{2},\frac{\mathrm{A}}{2}-\frac{\mathrm{B}}{2}$
Answer
1
Aastha Palak
Subject: Math
, asked on 3/2/18
Prove that there is only one Circle passing through 3 non colinear points
Answer
1
Yashita
Subject: Math
, asked on 3/2/18
In Fig. 16.170, AB is a diameter of a circle C(O, r) Chord CD is equal to radius OC. If AC and BD when produced intersect at P, prove that ∠APB is constant.
Answer
1
Rishika
Subject: Math
, asked on 3/2/18
Q. In figure AB = AC. BP is angle bisector of B
Prove CQ = CA
Answer
1
Reetu Shree
Subject: Math
, asked on 30/1/18
ac is the diameter if angle ebc=50 degrees find angle ced
Answer
1
Aastha Palak
Subject: Math
, asked on 29/1/18
Q.7. In Fig. 16.136, O is the centre of the circle, prove that
$\angle x=\angle y+\angle z$
.
Answer
1
Archana Pradeep
Subject: Math
, asked on 29/1/18
Plz solve this question
Given: AB=AC
$\angle E=100\xb0$
To find: x and y.
Answer
1
Archana Pradeep
Subject: Math
, asked on 29/1/18
Plz solve this
Answer
2
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28.In figure, equal chords AB and CD intersect each other at Q at right angle P and R the mid-points of AB and CD respectively. Show that OPQR is a square.1) If a line intersects to concentric circle with centre O at A, B, C, and D. prove that AB = CD.

Solve this :$10.\mathrm{Figure}16.201,\mathrm{ABCD}\mathrm{is}\mathrm{a}\mathrm{quadrilateral}\mathrm{inscribed}\mathrm{in}\mathrm{a}\mathrm{circle}\mathrm{with}\mathrm{centre}\mathrm{O},\mathrm{CD}\mathrm{is}\mathrm{produced}\mathrm{to}\mathrm{E}\mathrm{such}\mathrm{that}\angle \mathrm{AED}=95\xb0\mathrm{and}\angle \mathrm{OBA}=30\xb0.\mathrm{Find}\angle \mathrm{OAC}.$

Q.14. In the given figure, O is the centre of the circle. Find the value of x.

Q. A triangle ABC is inscribed in a circle, the bisectors of whose angle meet the circumference at X, Y and Z. Determine the angles X, Y and Z respectively.

(A) 90° –$\frac{\mathrm{A}}{2},90\xb0-\frac{\mathrm{B}}{2},90\xb0-\frac{\mathrm{C}}{2}$ (B) 90° , 60° , 30°

(C) $\frac{\mathrm{A}}{2},\frac{\mathrm{B}}{2},\frac{\mathrm{C}}{2}$ (D) $\frac{\mathrm{B}}{2},\frac{\mathrm{A}}{2},\frac{\mathrm{A}}{2}-\frac{\mathrm{B}}{2}$

Prove CQ = CA

$\angle E=100\xb0$

To find: x and y.