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

## Ncert Math Solutions Class 9th Chapter 10 Circles Exercise 10.5 Question 6

ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If , is , find . Further, if AB = BC, find .

## Ncert Math Solutions Class 9th Chapter 10 Circles Exercise 10.5 Question 5

**In figure, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that and . Find .**

## Ncert Math Solutions Class 9th Chapter 10 Circles Exercise 10.5 Question 4

## Ncert Math Solutions Class 9th Chapter 10 Circles Exercise 10.5 Question 3

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