Question

lenght of a semicircle

Answer 1

LENGHT OF A SEMI CIRCLE IS

LENGTH=2R

Answer 2

The length of a semicircle is not half the length of a circle. From the figure above, you can see that the legth is the curved part, which is half the circle, plus the diameter line across the bottom. Recall that the length(perimeter) of a circle is 2πR.

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