Question

A farm uses a circular system to water the crops. The arm on the system (the radius) is 400 meters long. What area of land can it water? Use 3.14 to approximate pi.

Answer 1

502,400

Explanation:

You can find the area of a circle using the formula

A = pi • r2.

Answer 2

To answer this question you would need to know the formula for the area of a circle,
`\pi r^(2)`. You would start by squaring 400, getting 160,000. You would then multiply 160,000 by 3.14, getting 502,400 meters squared as your answer.