Find the volume of the cone. Either enter an exact answer in terms of pi. Or use 3.14 for pi and round your final answer to the nearest hundredth. Height: 4 Base: 5

v=104.71976 unit^2

Step-by-step explanation:

V=πr2h

v=π*5^2*4

v=104.71976 unit^2

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.