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Help please I don’t get this one

Help please I don’t get this one-example-1
User Uml
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1 Answer

12 votes

Answer:


P = 8\pi

Explanation:

To solve this problem, we must calculate the circumference of one circle and multiply it by two because there are 2 circles (4 halves), that make up the perimeter.

We know the diameter is 4m, thus, the circumference of one circle (two halves) is:


C_1 = \pi d\\C_1 = \pi 4

To get the total perimeter (circumference) multiply the result by 2:


C = C * 2\\C = 4\pi * 2\\C = 8\pi

User Gurubaran
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5.3k points