Set up an equation and solve the problem. The area of a triangle is 12.5 square feet. If one side of the triangle and the altitude to that side are of equal length, find the length.
A) 6 feet
B) 4 feet
C) 7 feet
D) 5 feet
E) none of these

Question

Quizplus · Accepted Answer

Let x be the length of the side and altitude.
Then, the area of the triangle can be expressed as:
(1/2)*x*x = 12.5
x^2 = 25
x = 5

Therefore, the length of the side and altitude is 5 feet.

Set Up an Equation and Solve the Problem