Question

कौन-सा विकल्प एक वर्ग संख्या है?

1 point

200

400

700

1000​

Answer 1

Answer:

(20)²=400

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Answer 2

Given :  संख्या  numbers

To find :  वर्ग संख्या  , Square number

200

400

700

1000​

Solution :

200 = 10²  * 2

Not a perfect square

400  = 10² * 2²  = 20²

A perfect square

700 = 10² * 7

Not a perfect square

1000​  = 10² * 10  

Not a perfect square

Hence 400   एक वर्ग संख्या है​

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