Help I forgot everything math because of homeschooling

254.34

Step-by-step explanation:

The formula for area of a circle is

A=pi *r^2

A=3.14*(9)^2

A=3.14*81

A=254.34

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it