Answer: 495 squared inches
Step-by-step explanation:
This question asks for the area of both triangular sides, meaning that you can start by caculating one of them first and times it by two.
Formula for the area of a triangle: base x height ÷ 2
Area of one side: 15x33/2= 247.5 squared inches
Vinyl needed to cover both of the triangular sides: 247.5 x 2 = 495 squared inches