1. The bottom area of a cone is 8cm in diameter and 12cm in height. How many square centimeters does the surface area increase when it is cut in two vertically along the bottom diameter?

Increased the area of two triangles with 8 as the bottom and 12 as the height
That is, 2 × 1 / 2 × 8 × 12 = 96cm and 178;

RELATED INFORMATIONS

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