Question

Give any two theorems of circles class 9.
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Answer 1

Circle Theorem:

1) The angle at the centre is twice the angle at the circumference.

2)The angle in a semicircle is a right angle.

3)Angles in the same segment are equal.

4)Opposite angles in a cyclic quadrilateral sum to 180°

5)The angle between the chord and the tangent is equal to the angle in the alternate segment.

Answer 2

Answer:

The perpendicular from the centre of a circle to a chord will always bisect the chord (split it into equal lengths ).Angles formed from two points on the circumference are equal to other angles, in the same arc ,formed from two points .

Step-by-step explanation:

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