Question

Please answer with clear instructions so that i can apply this to other questions

Answer 1

30 cm

Explanation:

The perimeter of a circle is 2
`\pi`r where r is the radius. Therefore, the perimeter of the semicircle would be
`\pi`r + the diameter (because there is only half of the circle's arc). Using the value
`\pi` = 3 and d (diameter) = 12, the area of the circle would be 3(6) + 12 which is 18 + 12 which is 30 cm.

Hope this helps :)