Question

All Major League Baseball stadiums use standard measurements for their infield area. The pitcher's mound is a circle with a diameter of 18 feet. What is the approximate area that the pitcher's mound encompasses? Do not round your answer.

Answer 1

254 4/7 or 254.34 ft² (it depends on which method you use.)

Explanation:

To find the area of a circle, the formula is πr².

I'll use both 22/7 and 3.14 as pi, so I'll end up with two different answers. Just choose the more reliable one.

22/7 version:

22/7 * 9^2

22/7 * 81/1

1782/7

254 4/7 ft²

3.14 version:

3.14 * 9^2

3.14 * 81

314 - (3.14 * 19)

314 - 62.8 + 3.14

251.2 + 3.14

254.34 ft²

As I said, I ended up with two different answers. You also had said not to round my answer, so the 22/7 version has a mixed number.