Perimeter of a semi circle with diameter 30cm

asked Oct 14, 2020 29.2k views

2 votes

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4 votes

Answer:

77.12 cm to the nearest hundredth.

Explanation:

The length of the curved part = 1/2 * 2 pi r

= 15 pi.

Total perimeter = 30 + 15pi

= 30 + 15*3.1416

= 77.124.

Marco V answered Oct 20, 2020

6.2k points

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