Answer:
3 ft
Explanation:
The question is incomplete. Here is the complete question.
"Mr. Anderson cuts a piece of metal in the shape of the triangle shown. The piece of metal has an area of 7 1/2 square feet. What is the base of the piece of metal? triangle 5ft high"
Area of the triangle = 1/2 * base * height
Given the area of the piece metal = 7 1/2 ft² and its height = 5ft (since the triangle is 5ft high). On substituting the values in the formula;
7 1/2 = 1/2* base * 5
15/2 = 5/2 * base
15 = 5 * base
base = 15/5
base = 3ft
The base of the piece of metal is 3ft