Answer:
10
Step-by-step explanation:
Radius is half of the diameter.
So because the area of a circle is A= pi • r^2, to find the radius first, we have to change the equation to solve for r. Now it is, r= square root of A/pi. We plug in 1134.1. (Look at pic)
The diameter is 38
Answer:
i think the answer is B.4√5
Circumference of circle = 2 pi r
= 2 x 3.14 x 6
= 6.28 x 6
= 37.68 cm
Area of circle = pi r^2
= 3.14 x 6^2
= 3.14 x 36
= 113.04 cm^2