Question

A bike to do tricks with has 20-inch-diameter wheels. Find the area of each wheel. Round to the nearest whole number. (Hint: Use the π key on your calculator and round at the last step. If you do not have such a key, use 22/7 for π and round at the last step.)

a)314 in.2
b)1,256 in.2
c)1,257 in.2
d)312 in.2

Answer 1

do you know the area of the circle?

Answer 2

no :/

Answer 3

A=pi r2

Answer 4

the radius = 20/2 = 10 in

Answer 5

im confused

Answer 6

\[Area=\pi r^2\]

Answer 7

ok thanks

Answer 8

bye

Answer 9

the answer is a)