Question

A bike to do tricks with has 20-inch-diameter wheels. Find the area of each wheel. Round to the nearest tenth.

Answer 1

area of a circle is \[pi \times r ^{2}\]

Answer 2

radius is just half the distance of the diameter

Answer 3

Alright, thanks. For some reason when I followed that formula I kept getting the answers wrong haha but i'll try it again :)

Answer 4

just remember that it isn't the diameter you are dealing with, and dont confuse \[r ^{2}\] with 2times radius. The two times radius comes from the circumference of a circle

Answer 5

alright :) thank ya.

Answer 6

no problem