When creating the formula for surface area of a triangular pyramid (SA=12ab+3(12lb)), what formula is being used?(1 point)%0D%0AResponses%0D%0A%0D%0Aarea of a triangle%0D%0Aarea of a triangle%0D%0A%0D%0Aperimeter%0D%0Aperimeter%0D%0A%0D%0Avolume%0D%0Avolume%0D%0A%0D%0Aarea of a square

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