Question

A cone has a radius of 5 inches and a height of 18 inches. What is the exact volume of the cone?

A. 150pi in3

B. 300pi ni3

C. 450pi in3

D. 540pi in3

Answer 1

`radius : \ r= 5 \ in \\ height : \ h = 18 \ in \\ \\Volume \ of \Cone : \\ \\ V= = \frac{1} { 3 } \pi \cdot r^2 \cdot h\\ \\V=(1)/(\\ot3^1)\cdot \pi \cdot 5^2 \cdot \\ot18^6= 6\cdot 25 \cdot \pi= 150 \ \pi \ in^3 \\ \\Answer: \ A. \ \ 150 \ \pi \ in^3`