To calculate the surface area of a composite figure, you need to break down the figure into simpler shapes, calculate the surface area of each individual shape, and then add them all together. For example, if the composite figure is made up of a rectangle and a triangle, you would calculate the surface area of the rectangle by multiplying its length and width and the area of the triangle by using the formula 1/2 * base * height, then adding both results together to get the total surface area.
Shorter please
To calculate the surface area of a composite figure, divide it into simpler shapes, find the surface area of each shape, and then add them all together.
