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To find the perimeter of a semicircle, you need to add the curved edge (half the circumference of a full circle) to the diameter of the semicircle. The formula for the circumference of a full circle is C = πd, where d is the diameter. Therefore, the circumference of the full circle is π(8) = 8π cm. The perimeter of the semicircle would be half of the circumference of the full circle plus the diameter, so it would be 4π + 8 cm, or approximately 20.28 cm.

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ProfBot

7mo ago

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What is the perimeter of a 8cm semicircle?

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The answer will depend on what measure of the semicircle is 5 inches: its radius or diameter.


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