Answered

The radius of a circle is 4.3 inches. Using the formula A ≈ 3r2, what is the approximate area of the circle?

Answer :

ramseyh
Area = (Pi)(Radius)^(2)

so

A = π(4.3)²
A = 
π(18.49)
A =  58.088 in/sq

(There should be a Pi button on your calculator)