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

Responses

area of a triangle
area of a triangle

volume
volume

perimeter
perimeter

area of a square
pick one corect awnser

1=72.52

2=276
3=320
4=55.75
5=area of a triangele

100% i passt

The formula being used is the surface area of a triangular pyramid.