Given:
Given that the sides of the triangle are 3 inches, 5 inches and 4 inches.
We need to determine the area of the triangle.
Area of the triangle:
The area of triangle can be determined using the formula,

where b is the base of the triangle and h is the height of the triangle.
From the figure, it is obvious that the base of the triangle is 4 inches and the height of the triangle is 3 inches.
Substituting b = 4 and h = 3 in the above formula, we get;



Thus, the area of the triangle is 6 square inches.