masonjpeterson masonjpeterson

08-12-2019
Mathematics

contestada

Perimeter of a semi circle with diameter 30cm

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PollyP52 PollyP52

08-12-2019

Answer:

77.12 cm to the nearest hundredth.

Step-by-step explanation:

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

= 15 pi.

Total perimeter = 30 + 15pi

= 30 + 15*3.1416

= 77.124.

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