Question

If you can mow 1000 square feet per minute, how long to mow a circle with diameter of 800 feet?

Answer 1

Answer:

You can calculate the area of the circle

We know the formula is: $\pi*r^2$

And if diammeter is 800, then the radio is a half: 400

We replace:

$\pi*r^2 --> \pi * 400^2$ $\approx 502654.8$  feet

So now we can divide:

502654/1000 = 502,654 minutes