Calculate the area of 5 plane figures whose perimeter is equal
to 100
cm. [Take
= 3.14 ]
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Answer:
perimeter= 100 π cm
perimeter of circle = 2πr
100π=2πr
so pi gets cancelled
r=100 upon 2 = 50 cm
Area of 5 plane figures = πr square × 5
= 3.14×50×50×5
=314 upon 100 ×50×50×5
= 314×5×5×5
314×125
= 39250 cm square
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