Find the area of the lateral surface of the truncated cone if the radii of its bases are 7cm and 8cm
| September 5, 2021 | education
Find the area of the lateral surface of the truncated cone if the radii of its bases are 7cm and 8cm, and the generating side is 12 cm.
The area of the lateral surface of the truncated cone is equal to: Side = n * (R + r) * L, where R, r are the rm the radii of the bases of the truncated cone, L is the generatrix of the cone.
Side = n * (BO1 + AO) * AB = n * (7 + 8) * 12 = 180 * n cm2.
Answer: The lateral surface area is 180 * n cm2.
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