W ^10
( little 10 though like the -5 is )
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
The formula is V=Bh
You'd get the base (it's a circle so you'd have to do A=pie*radius square)
Once you find the base, you mutliply it by the height
Answer:

Step-by-step explanation:
Division property of equality- is dividing both sides of an equation by the same non-zero number it does not change the equation.
First you had to divide by six from both sides of an equation form.







Final answer: 
Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie