The triangle in the picture shows the top of the entrance to a classical building. How would you write an equation to find the area of this triangle?

To find the area of the triangle, you would use the formula for the area of a triangle:

Area = 1/2 * base * height

In this case, the base of the triangle is the length of the entrance to the classical building and the height is the distance from the top of the entrance to the tip of the triangle. You would need to measure these two dimensions in order to plug them into the formula and calculate the area of the triangle.