It is 9 inches because the formula for the area of a circle is πr2 where the r represents the radius of the circle
The pi can be canceled out =
πr2 and 81 π leaving with
R2 and 81
The r2 represents a square number. So square root 81 and you would result in 9 as your answer
The first side=8
The second side=10
The third side=15
8+10+15=33
√52 square root of 52, 6*6=36 -4*-4=16 add them together and then square root that number
