To find the area of a composite figure, you must find the area of each polygon and then add their areas together to find the total area of the composite figure.
What is the height of the triangle?

A. 13cm
B. 6cm
C. 8cm

6 cm

Step-by-step explanation:

Here, we want to get the height of the triangle

As we can see , the whole

length is 13 cm

This is obtained by adding the length of the side of the rectangle to the height of the triangle

Thus, we have that

height = 13-7

height = 6 cm