# Cyclic Quadrilaterals Free Doubts and Solutions

### CBSE - IX - Mathematics - Circles

## Please solve question no 6 with proper explanation

**adityaahuja099**30th November 2017, 8:30 PM

### CBSE - IX - Mathematics - Circles

## Please solve question no 7 with proper explanation

**adityaahuja099**28th November 2017, 5:05 PM

### CBSE - IX - Mathematics - Circles

## Please solve question no 1 with proper explanation

**adityaahuja099**24th November 2017, 7:18 PM

### CBSE - IX - Mathematics - Circles

## Please solve question no 8 with proper explanation

**adityaahuja099**20th November 2017, 7:54 PM

### CBSE - IX - Mathematics - Circles

## Prove that the opposite angles of a cyclic quadrilateral are supplementary.

**Topperlearning User**4th October 2017, 2:06 PM

### CBSE - IX - Mathematics - Circles

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

**Topperlearning User**4th October 2017, 2:03 PM

### CBSE - IX - Mathematics - Circles

In the figure, O is the centre of the circle and .

In the figure, O is the centre of the circle and .

**Topperlearning User**4th October 2017, 1:55 PM

### CBSE - IX - Mathematics - Circles

## AC and BD are chords of a circle which bisect each other. Prove that (i) AC and BD are diameters of the circle and (ii) ABCD is a rectangle.

**Topperlearning User**4th October 2017, 1:42 PM

### CBSE - IX - Mathematics - Circles

## Prove that the exterior angle of a cyclic quadrilateral is equal to the interior opposite angle.

**Topperlearning User**4th October 2017, 12:58 PM

### CBSE - IX - Mathematics - Circles

## In circle ,ABC is an isosceles triangle with AB=AC and P is point on side AC.Through C a line is drawn to intersect BP produced in Q,such that angle ABQ=angle ACQ.
PROVE THAT :ANGLE AQC=90 DEGREE+1/2 OF ANGLE A.

**ranjitrk1**14th March 2016, 9:40 PM

### CBSE - IX - Mathematics - Circles

## in a cyclic quadrilateral ABCD, if <A-<C=60, prove that the smaller of two is 60

**Rishitha Reddy**10th March 2016, 9:05 PM

### CBSE - IX - Mathematics - Circles

## i want to know which is the guides for claSS 10
mention the names of each subjects which is best in all subjects social hindi physics chemistry biology maths english

**sanjeev.mami**9th March 2016, 8:01 PM

### CBSE - IX - Mathematics - Circles

## ABCD is a cyclic quad. in which angle BAD = 75 ,angle ABD = 58, angle ADC = 77 , AC and BD intersect at P.Then find angle DPC ?

**nisha_vini29**24th February 2016, 9:29 AM

### CBSE - IX - Mathematics - Circles

## prove that circle drawn with equal sides as a diameter passes through D.if D is midpoint of BC of an isosceles triangle ABC with AB=AC.

**ranjitrk1**11th February 2016, 7:09 PM

### CBSE - IX - Mathematics - Circles

## In the given figure, find the measure of angle ABD , PDA , CAB and CBD ?

**nisha_vini29**10th February 2016, 11:30 AM

### CBSE - IX - Mathematics - Circles

## prove that the circle drawn with any side of a rhombus as a diameter, passes through the point of intersection of its diagonal.

**manavmansvi**7th March 2015, 11:32 AM

### CBSE - IX - Mathematics - Circles

## Prove that the circle drawn with any side of a rhombus as a diameter, passes through the point intersection of its diagonals.

**sujaysarkar84**7th March 2015, 10:54 AM

### CBSE - IX - Mathematics - Circles

## Hello sir ,
my question is :
in the given figure ABCD is a cyclic quadrilateral in which AE// CD and BA is produced to f.If <abc=70
and <fae=30 .find <bcd
and i am not able to sketch the figure in this screen.PLease do the needful

### CBSE - IX - Mathematics - Circles

## ABCD is a cyclic quadrilateral in which AB is the diameter of the circle which is passing through A,B,C & D. If angle ADC is equal to 130°, find angle BAC

**saketh**10th February 2015, 7:15 PM

### CBSE - IX - Mathematics - Circles

## Prove that the sum of either pair of opposite angles of a cyclic quadrilaterals is 180

**Ayan**16th January 2015, 4:00 PM

### CBSE - IX - Mathematics - Circles

## where to found sagment 1 question paper in your site.

**hpatanayak**5th October 2014, 9:38 PM

### CBSE - IX - Mathematics - Circles

## In the figure, ABCD is a parallelogram. The circle through A, B and C intersects CD produced at E. Prove that AE = AD.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## In a cyclic quadrilateral ABCD, if AB||DC and B = 70o find the measures of the remaining angles of the quadrilateral.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## AOB is a diameter of the circle and C, D, E are any three points on the semicircle. Find the value of ACD + BED.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## ABDC is a cyclic quadrilateral and AB = AC. If ACB = 70o find BDC.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## ABCD is a cyclic quadrilateral. Find ADB

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## If non-parallel sides of trapezium are equal. Prove that the trapezium is cyclic.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## In the figure, B and E are points on line segment AC and DF respectively. Prove that AD||CF.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## In the figure, ABCD is a cyclic quadrilateral and ABC = 85o. Find the measure of ADE.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## In the figure, if BAC = 60o, ACB = 20o find ADC.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

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

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## If non parallel sides of trapezium are equal, prove that it is cyclic.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## In figure, P, Q, R and S are four points on a circle. PR and QS intersects at point O. If QOR = 130o and ORS = 20o. Find QPR.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## Prove that the angle subtended by an arc at the centre is double the angle subtended by it at any point on the remaining part of the circle.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## The vertices of a parallelogram lie on a circle. Prove that its diagonals are equal.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## O is the centre of the circle as shown in the figure. Find CBD

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## Prove that quadrilateral formed (if possible) by the internal angle bisectors of any quadrilateral is cyclic.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## In the given figure, O is the centre of the circle. The angle subtended by arc ABC at the centre is 140o. AB is produced to P. Determine ADC and CBP

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Circles

## Prove that a cyclic parallelogram is a rectangle.

**Topperlearning User**4th June 2014, 1:23 PM