Answer:
1) Volume = ⅓×pi×r²×h
= ⅓×3.14×7²×14
= 718.01 in³
2) ⅓×3.14×5²×10
= 261.67 cm³
3) r = 12÷2 = 6
Volume = (4/3)×3.14×6³
= 904.32 mi³
4) 3.142×4²×5
= 251.2 ft³
5) radius = 2
(4/3)×3.14×2³ = 33.49 ft³
6) radius = 2
3.142×2²×3 = 37.68 m³
