Question

An asteroid hit the earth and created a huge round crater. Scientists measured the distance around the crater as 26 miles. What is the area of the crater?

Answer 1

53.8 mi^2

Explanation:

First we need to determine the radius of the crater. The circumfence formula is C = 2(pi)r, and here C = 26 miles. Thus,

26 mi = 2(pi)r, so that

26 mi

r = ------------ = 4.13 miles

2pi

Then the area of the crater is A = (pi)r^2, or:

A = 3.14(4.13 mi)^2 = 53.8 mi^2