Question

Find the volume for the spear shown to The Right. Use 3.14 for pi sphere is 5.8

Answer 1

Semicircle perimeter is 5.8 m

THEN

2π • R + 2R = 5.8

R = 5.8/(2π + 2) = 0.7 meters

Now find Volume

Volume V = (4/3)•π•R^3

V= (4/3)•π•(0.7^3) = 1.438 cubic meters

V=. 1.438 m^3