The equation that can be used to calculate the area of the triangle below is:
[tex]\frac{1}{2}(14 \times 8) = 56[/tex]
Hence option d is correct.
What is the area of a triangle?
The area of a triangle is half the multiplication of the lengths of the base and of the height, that is:
[tex]A = \frac{bh}{2}[/tex]
In a right-triangle such as in this problem, one side is the base and the other is the height. In this problem, b = 14 and h = 8, hence the area in square feet is given by:
[tex]A = \frac{1}{2}(14 \times 8) = 56[/tex]
Thus option D is correct.
You can learn more about the area of a triangle at https://brainly.com/question/24721131