Answer:
28.5ft²
Explanation:
The figure above is a triangle. The formula for finding the area of a triangle is expressed as:
Area of a ∆ = 1/2 × base × height
Given the base of the triangle = 19ft
Height = 3ft
Area of the triangle = 1/2 × 19 × 3
Area of the triangle = 57/2
Area of the triangle = 28.5ft²