When creating the formula for surface area of a triangular pyramid (SA=12ab+3(12lb)) , what formula is being used?(1 point) Responses perimeter perimeter volume volume area of a triangle area of a triangle area of a square

Answer 1

The formula \( SA = \frac{1}{2}ab + 3\left(\frac{1}{2}lb\right) \) for the surface area of a triangular pyramid uses the area of a triangle.

1. The term \(\frac{1}{2}ab\) represents the area of the triangular base (where \(a\) and \(b\) are dimensions related to the base).
2. The term \(3\left(\frac{1}{2}lb\right)\) accounts for the area of the three triangular faces of the pyramid (where \(l\) is the slant height and \(b\) is the base width).

Therefore, the most relevant answer from your options is area of a triangle.