Answer:
240 in²
Step-by-step explanation:
The net is composed of 3 rectangles and 2 congruent triangles
Calculating the area of the 3 rectangles
A = (5 × 12) + (8 × 12) + (5 × 12) = 60 + 96 + 60 = 216 in²
Calculating the area of the 2 congruent triangles
A = 2 × [tex]\frac{1}{2}[/tex] bh ( b is the base anh h the perpendicular height
Here b = 8 and h = 3, thus
A = bh = 8 × 3 = 24 in²
Total area = 216 + 24 = 240 in²
