Hello from MrBillDoesMath!
Answer:
5. 113.0 ft^36. 149.8 cm^3
Discussion:
The volume of a sphere of radius r is(4/3) Pi r^3.5. Radius =3 => V = (4/3) Pi (3)^3 = (4*27/3) Pi = 36 Pi = 36 (3.14 ) approx = 113.0 ft^3 to the nearest tenth6. As shown the diameter = 13cm. As the radius is 1/2 the diameter V = (4/3) Pi (13/2)^3 = (4/3) Pi ( 2197/8) = (1/6) Pi ( 2197) = (1/6) 3.14 (2197) approx = 1149.8 cm^3 to the nearest tenth
Thank you,
MrB