Remember the formula of the area of a circle is:

SO given that
V = 226.98
and

Plug in a chug
226.98 = 3.14 *


r = 8.50
Remember that d = 2 * r
d = 2 * 8.5 = 17
Answer:
Step-by-step explanation:
side a = 10
Area of isosceles triangle = 
= 
= 43.3 square units
22.5 (shower) = X (variable used in place of the amount of water she uses to wash clothes) - 7.5 (the amount she used in the shower is 7.5 gallons less than she uses for washing clothes)
22.5 = X - 7.5 《 This is the equation.
Solve is by adding 7.5 to both sides to cancel out the negative 7.5 and you get (X = 30).