Calculate the perimeter of a semicircle with diameter 70cm.
Answers
Answered by
2
Step-by-step explanation:
diameter=70cm
radius=1/2×70=35cm
perimeter=(πr+2r)=r(π+2)=35×(22/7+2)=35×36/7=36×5=180cm
hope this will help you out!!!
Answered by
1
Answer:
perimeter of circle =2πr
perimeter of semicircle =πr
Diameter=70
radius =70/2=35cm
perimeter of semi cirlce=22/7 ×35
=22×5
=110.
therefore 110cm is the perimeter of a semi cirlce
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