the jedi have a weapon that can shoot a projectile 20 miles. find the area that the projectile can land in.

The area he can cover with that weapon is 1,256 miles².

Step-by-step explanation:

Assuming that the Jedi won't move and that he can shoot in every direction, he'd be shooting at a circle with a radius of 20 miles. Therefore the are that he can cover with that weapon is the area of the circle, which is shown below:

area = pi*r²

area = 3.14 * (20) ²

area = 3.14*400

area = 1,256 miles²

The area he can cover with that weapon is 1,256 miles².