Hard Math Class 9 Level 1

If the area of a square is doubled then the new side is how many times the old side?

वर्ग का क्षेत्रफल 2 गुना करने पर नई भुजा पुरानी भुजा की कितनी गुना होगी?

A 2 गुना / 2 times B √2 गुना / √2 times C 4 गुना / 4 times D 1/2 गुना / 1/2 times
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Correct Answer

B. √2 गुना / √2 times

Explanation

Area is proportional to square of side so when area doubles the side becomes √2 times.

क्षेत्रफल भुजा के वर्ग के अनुपाती है इसलिए क्षेत्रफल 2 गुना होने पर भुजा √2 गुना होती है।

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