the diameter of a sphere is decreased by 25%,by what percentage its volume decrease?
Please give step wise solution! and easy to.understand.
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Answer:
This is the correct answer and pls mark this answer as brainliest answer
Step-by-step explanation:
Original Diameter =d
Original CSA=4π(2d)2=πd2
New Diameter =d−10025d=43d
New CSA=4π(83d)2=169πd2.
% decrease =πd2(πd2−169πd2)×100
=πd2πd2(1−169)×100
=1616−9×100
=43.75%.
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