Answer:
Area = 1/2 * Height * Length
Step-by-step explanation:
This equation is derived from the area of a square, as a the area of a square is
A = Base (or Length) times the Height. A triangle will always be the half of that equation. Getting the correct height and length depends on the type of triangle and what information is available to use, with SOH-CAH-TOA being a useful concept to remember if you don't have the necessary information.