24. If the diameter of a circle decreases by 10%, what will be
the percentage change in the area of the circle
(a) 21% decrease (c) 19% decrease
(b) 10% decrease (d) 20% decrease
is 5:4. If
Answers
Answered by
19
Answer:
Option D (20% decrease) is the correct answer
Step-by-step explanation:
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Answered by
1
Answer:
radius =100m.
area=π*10000m2
radius decrease by 10%
radius become 90
area become=π*8100
area decrease=π*1900
% change=π*1900/π*10000 *100
=19%
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