What is the area of a triangle with a base 12' long and a height of 7'?

To find the area of a triangle, the formula used is A = 1/2 × base × height. In this case, the base of the triangle is given as 12 feet, and the height is 7 feet.

By substituting these values into the formula, the calculation proceeds as follows:

Area = 1/2 × 12 ft × 7 ft

Area = 1/2 × 84 ft²

Area = 42 ft².

Thus, the area of the triangle is confirmed to be 42 square feet. This demonstrates how to apply the triangle area formula accurately to find the correct answer based on the provided dimensions.

Understanding this calculation is crucial because it lays the foundation for determining areas in various contexts, especially in fields involving construction, architecture, and geometry, all of which are relevant to building analysis in multifamily structures.