The answer is -166, your welcome
Answer:
To determine the circumference, of the circle what you would need to do is to use the formula for the Circumference.
This formula can be seen as : C = Pi x Diameter.
C = 2 x Pi x R.
2x -10 = 30
add ten to both sides
2x = 40
divide by two
x = 20
so this has to shapes, a semicircle and a parallelogram. Area of parallelogram is 8×5=40. Area of a circle is pi×3 squared which is 28.27. Then you have to divide that by two because its half a circle which. is 14.14. So then you add 40+14.14=54.14. So your answer is 54.14