Question

The volume of a cone-shaped tunnel is 424 cubic centimeters. The height of the funnel is 5 centimeters. Find the radius of the funnel. Round your answer to the

nearest whole number.

Answer 1

volume of cone=424cm³

height(h)=5cm

radius (r)=?

Explanation:

we have

volume of cone=1/3(πr²h)

424=1/3(22/7×r²×5)

424×3=15.71r²

r²=1272/15.71

r=√80.9=8.9=9cm