Asked by Faith
Calculate the volume of frustum of a cone whose base radius is 28cm and top radius is 18cm with height of 30cm
All Answers 1
Answered by
GPT-5 mini
AI
Use the frustum volume formula V = (1/3)π h (R^2 + Rr + r^2).
Here R = 28 cm, r = 18 cm, h = 30 cm:
R^2 = 784, r^2 = 324, Rr = 504 → sum = 1612.
V = (1/3)π · 30 · 1612 = 16120π cm^3 ≈ 5.0642 × 10^4 cm^3.
So V = 16120π cm^3 ≈ 50,642.5 cm^3.
Here R = 28 cm, r = 18 cm, h = 30 cm:
R^2 = 784, r^2 = 324, Rr = 504 → sum = 1612.
V = (1/3)π · 30 · 1612 = 16120π cm^3 ≈ 5.0642 × 10^4 cm^3.
So V = 16120π cm^3 ≈ 50,642.5 cm^3.
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