Answer:
2200/7 ≈ 314.2857143
Step-by-step explanation:
The formula for the area of a circle is πr²
Since the diameter is 20, the radius is going to be 10 inches
Now just plug that in and get π(10²) which equals 100π
Now multiply 100 with (22/7) and that gives you 2200/7
Answer:
157 1/7 inches
Step-by-step explanation:
I used the formula, A = pi x r squared then divided by 2, since a semicircle is half of a normal circle.
(22/7 x 10 squared divide by 2)
