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3D Geometry
· Examples✏️ Worked Examples — Step by Step
E1
EasyVolume of a cube with side 6:
💡 s³.
👁 Show Solution
6³ = 216. ✅ Answer: 216 cubic units
✅216
E2
MediumVolume of a cylinder r=5, h=10 (π=22/7):
💡 πr²h.
👁 Show Solution
(22/7) × 25 × 10 = 5500/7 ≈ 785.7. ✅ Answer: ~785.7 cubic units
✅785.7
E3
ChallengingA sphere has volume 36π. Find its radius.
💡 (4/3)πr³ = 36π.
👁 Show Solution
(4/3)r³ = 36 → r³ = 27 → r = 3. ✅ Answer: r = 3
✅3