Find the ratio: The ratio of the area of circle with radius r/2 to its semi-perimeter.
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Answer:
The ratio is r/2
Step-by-step explanation:
Given Radius = r/2
therefore , the area of the given circle = Pie r^2
= 22/7* (r/2)^2 = 22/7* r^2/4
=22r^2/28=11r^2/14
Now,
semi-perimeter= pie*r = 22/7* r/2
= 11r/7
so, the ratio = 11r^2/14 * 7/11r= r/2
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