Question

Help me please. I cannot do it.

Answer 1

Answer:

1608 cm²

Step-by-step explanation:

To find the surface area of a triangular prism, we add up the area of all sides.

Rectangles:

• 10 * 30 = 300 cm²

• 21 * 30 = 630 cm²

• 17 * 30 = 510 cm²

• 300 + 630 + 510 = 1440 cm²

Triangles:

• 8 * 21 = 168 cm²

Both:

• 1440 + 168 = 1608 cm²