Question

1. 10 in Radius: Diameter Circumference Area:​

Answer 1

Answer: The diameter is 20 units, the circumference is $20\pi$ or about 62.83, and the area is $100\pi$ or about 314.16

Step-by-step explanation:

To get the diameter, you can mutiply the radius by 2. (10*2= 20)

To get the circumference, you can use the equation $2\pi r$, substituting r for the radius. For an exact answer, use pi. For an approximate, do only 2 times the radius and append pi to the answer ($20\pi$).

To get the area, you can use the equation $\pi r^2$, substituting r for the radius. For an exact answer, use pi. For an approximate, do only the radius squared ($100\pi$).