Hard Math Class 9 Level 1

A chord of length 24 cm is 5 cm away from the centre of a circle. What is the radius?

एक वृत्त की 24 cm लंबी जीवा केंद्र से 5 cm दूर है। वृत्त की त्रिज्या कितनी होगी?

A 11 cm / 11 cm B 12 cm / 12 cm C 13 cm / 13 cm D 14 cm / 14 cm
Show answer and explanation
Correct Answer

C. 13 cm / 13 cm

Explanation

Half chord is 12 cm. The radius is √(12² + 5²) = 13 cm.

जीवा का आधा 12 cm है। त्रिज्या √(12² + 5²) = 13 cm होगी।

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