Answer:
320cm³
Explanation:
First, find the area of the triangle.
a=hb/2 (area = height * base / 2)
area = 4*8/2=16
Then, find the area of the rectangle.
a=wl (area = width * length)
area = 6*8=48
Then, you add the two totals and multiply the width (5cm).
16+48=64
64*5=320