Question

please help

Answer 1

@LegendarySadist

Answer 2

So if we want the perimeter of a semicircle, that would be equal to half of the circumference of the circle.

Answer 3

be back in 2 minutes k thanks

Answer 4

Since we have the radius, we just use the formula \[C=2*\pi *r\] to get the circumference. That would equal 56.5486677646162783. Then all we have to do is divide it by two and then add on the diameter to find the perimeter of the semi-circle. So\[28.27+18=46.27\] Would be our answer

Answer 5

thank u sooo much

Answer 6

No problem, understand how I got it? :)