Medium Math Class 9 Level 9

If the area of a square is 441 cm² then what is its perimeter?

वर्ग का क्षेत्रफल 441 cm² है तो उसका परिमाप कितना होगा?

A 21 cm / 21 cm B 42 cm / 42 cm C 84 cm / 84 cm D 1764 cm / 1764 cm
Show answer and explanation
Correct Answer

C. 84 cm / 84 cm

Explanation

Side is √441 = 21 cm and perimeter is 4 × 21 = 84 cm.

भुजा √441 = 21 cm और परिमाप 4 × 21 = 84 cm।

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