You have 2 triangles and 3 rectangles. Start with a triangle: area is base side * height / 2 -> 4 * 3 / 2 = 6 The other triangle has the same area: 6 First rectangle: side * other side -> 7 * 5 = 35 Second rectangle: 7 * 4 = 28 Third rectangle: 7 * 3 = 21 Now simply add all this together: 6+6+35+28+21 = 96
