Given:
The area of the triangle is 24 yd²
The height of the triangle is 4 yd.
We need to determine the base of the triangle.
Base of the triangle:
The base of the triangle can be determined using the formula,

where b is the base and h is the height of the triangle.
Substituting
in the above formula, we have;

Simplifying, we get;


Thus, the base of the triangle is 12 yard.
Hence, Option A is the correct answer.