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Two semicircles are used to make the shaded shape below.

One semicircle has a diameter of 12 cm and the other has a diameter of 20 cm.

-20 cm-

•12 cm-


Work out the perimeter of the shaded shape.

Respuesta :

cyou6149

Answer:

100.53 cm

Step-by-step explanation:

1) Divide the diameter by 2 to find the radius. (20/2 & 12/2)

2) Multiply 2 times pi times the radius. (2*pi*10 & 2*pi*6)

3) Add the two products together to find the perimeter. (62.83+37.7=100.53cm)

I hope this helps

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