A cylinder and its dimensions are shown (radius=7cm height=10cm). One equation for calculating the volume of a cylinder is V = Bh , where B represents the area of the base of the cylinder. Which expression can be used to find the value of B, in square inches, for this cylinder?
A. 2π (7)
B. π (10^2)
C. π (7)^2
D. 2π (10)
C. π (7)^2
The formula for the area of the base of a cylinder is A = πr^2. Plugging in the radius r = 7cm, we get:
B = π(7)^2
B = π(49)
B = 49π
This gives us the value of B in square inches for this cylinder.