Question

Find the lateral area of this pyramid

whose base is an equilateral triangle. Its
slant height is 12 in. and the length of each
side of the triangular base is 5

Answer 1

The answer is 90 squared!!!!

Answer 2

90 in²

Explanation:

The lateral area can be found using the formula ...

LA = (1/2)Ph

where P is the perimeter of the base and h is the slant height. For your dimensions, the lateral area is ...

LA = (1/2)(3×5 in)(12 in) = 90 in²

The lateral area is 90 square inches.