. A wire of length of 36 cm is bent in the form of a semi-circle. What is the radius of the semi-circle?
Answers
Answered by
1
Step-by-step explanation:
So, the perimeter of a semicircle is πr+d, where r = radius and d = diameter of a semicircle. The length of a wire which bent in the form of a semicircle is equal to the perimeter of a semicircle. ∴ The radius of the semicircle is 7cm.
Answered by
5
Answer:
7cm
Step-by-step explanation:
perimeter of wire and semicircle is same so
the diameter is also counted for perimeter
because πr is for only outside one including inside diameter πr+d
refer attachment to get what I want to say
Attachments:
prince5132:
Nice
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