Work out the perimeter of a semicircle with radius 3cm.

give your answer in terms of pi​

None.

Step-by-step explanation:

The fact that you don't know how to solve this means you haven't studied. At all.

But, I'll give you some hints:

1. The perimeter of a semicircle is half the perimeter (or length) of the circle.

2. The length of a circle is given by the formula

answer: y = 3/2 x - 3

y = 1/8 x - 3/4 that would be your correct option

step-by-step explanation: w

thus, the first answer choice, y = sec x, is the correct one