Mathematics, 19.05.2020 21:04 jadea520

A regular triangular pyramid has a base and lateral faces that are congruent equilateral triangles. It has a lateral surface area of 72 square centimeters. What is the surface area of the regular triangular pyramid?

A regular triangular pyramid has a base and lateral faces that are congruent equilateral triangles.

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A regular triangular pyramid has a base and lateral faces that are congruent equilateral triangles....