Answer:
C) 312 cm^2
Explanation:
To find the total area of the composite figure, you must sum the individual components of the figure.
First, we find the area of the rectange, which is A = l x w = 16 x 12 = 192
Second, we find the area of the first triangle which is also equal to the area of the second triangle, so instead of finding the base times height and dividing by 2, we will simply find the area of base times height and it will work for both trianges.
A = b x h x 1/2 x 2 = 10 x 12 = 120
120 + 192 = 312 cm^2