Hard Math Class 9 Level 1

A cuboid has length 12 cm breadth 9 cm and diagonal 17 cm. What is its height?

घनाभ की लंबाई 12 cm चौड़ाई 9 cm और विकर्ण 17 cm है। ऊंचाई कितनी होगी?

A 6 cm / 6 cm B 7 cm / 7 cm C 8 cm / 8 cm D 10 cm / 10 cm
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Correct Answer

C. 8 cm / 8 cm

Explanation

For cuboid diagonal d² = l² + b² + h². 289 = 144 + 81 + h² so h² = 64 and h = 8.

घनाभ के विकर्ण में d² = l² + b² + h²। 289 = 144 + 81 + h² इसलिए h² = 64 और h = 8।

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