Question

A chord of a circle of radius 10 cm subtends a right angle at its centre. The length of the chord (in cm) is

Answer 1

I hope this might help you
please don't go on my handwriting
I know it's really bad

Answer 2

10$\sqrt{2}$ or 14.14cm is the length of the cord

Step-by-step explanation:

Let the circle's radius be 'r' and the angle that is subtended at the center by the chord be ∅,

We are given that:

r = 10cm

∅ = 90°

Length of the chord = 2r sin ∅/2

= 2 * 10sin (90°/2)

= 20 * sin 45°

= 20 * 1/$\sqrt{2}$

= 10$\sqrt{2}$

In cm, it would be 14.14 cm

Learn more: Chord of the circle

brainly.in/question/17120528