If the side of a square decreases by 30%, then the area of the square decreases by:

14%

21%

49%

51%

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উত্তর: 51%

Suppose the of the square = a The area of the square = a2 Now the sides are reduced by 30% . So its new side = 7a/10 New area = 49a2/100 So by reducing the diagonals of the square by 30%, the area becomes (a2 49a2/100)*100/a2 = 51% of the original. (ans)

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অনুসন্ধান করুন

বিস্তারিত সমাধান

If the side of a square decreases by 30%, then the area of the square decreases by:

সম্পর্কিত বিষয় সমূহ

সম্পর্কিত অন্যান্য প্রশ্ন

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