The figure is made up of two shapes, a semicircle and a rectangle.

what is the exact perimeter of the figure?

3π+12 mm

6π+12 mm

6π+18 mm

3π+18 mm

Step-by-step explanation:

we know that

The perimeter of the figure is equivalent to the perimeter of a rectangle plus the perimeter of semicircle minus the length side of mm

step 1

Find the perimeter of rectangle

the perimeter of rectangle is equal to

we have

substitute

step 2

Find the circumference of semicircle

the of circumference of semicircle is equal to

we have

substitute

step 3

Find the perimeter of the figure

the answer is y = 11.54

hope this : )