Question

Radius of a circle is 20cm . Distance of a chord from the centre of the circle is 12 cm . Find the length of the chord ​

Answer 1

Answer:

32cm

Step-by-step explanation:

by,Pythagoras theorem

20×20-12×12

400-144

=256

16

16×2=32cm.

Answer 2

Given:

Radius of the circle = 20cm

Distance of the chord = 12cm

To Find:

Length of the chord

Solution:

Let the other chord be x.

So, the triangle will be a right triangle,

Thus, by Pythagoras Theorem -

(20)² = (12)² square + x²

400 = 144 + x²

x² = 256

x - 16

Similarly, the other chord will alse be 16 cm

Therefore, the length of chord will be -

= 16 +16

= 32

Answer: The length of chord is 32cm.