Do you have the rest of the question?
Answer:
to make sure you understand the question
Step-by-step explanation:
15-4 = 11
11 x 2 = 22
22 + 2/3 = 68/3
Area of the triangle = (1/2)*base*height
For right triangle base and height can be legs.
We have one leg = 5 ft. (Lets think it is a base.)
We need to find the other leg.
We are going to use Pythagorean theorem.
5² + b²=13²
b²=144
b=12 (It is going to be our height.)
Area of the triangle = (1/2)*5*12= 30 ft²
Area of the triangle = 30 ft²