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
Answer:
c
Step-by-step explanation:
18, 19, 20
-18,-19,-20
x + 15 ≤ 35
x ≤ 35 - 15
x ≤ 20
x must be 20 or less than it