30). Radius of a circle is decreased by
50%.What will be the effect on its Area? एक
वृत्त की त्रिज्या 50% तक कम हो जाती है। इसके
इसका छेत्रफल एरिया पर क्या असर होगा?
(A) 25 % (B) 50 % (C) 75 % (D) 80 % (E)
NOT
Answers
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Step-by-step explanation:
50%=1/2
Area=pie r sqaure
= pie 2×2=4pie
Area= pie 1×1=1pie
Change in area=1/4× 100=25%
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