To find the amount of plastic wrap needed to cover the wedge of cheese, we need to first find the surface area of the triangular prism.
The formula to find the surface area of a triangular prism is:
Surface Area = (2 * base area of triangle) + (perimeter of base * height)
Let's assume the base of the triangle has sides of 10 cm, 12 cm, and 14 cm and a height of 8 cm.
Base area of triangle = 1/2 * base * height = 1/2 * 10 cm * 8 cm = 40 cm²
Perimeter of base = 10 cm + 12 cm + 14 cm = 36 cm
Surface Area = (2 * 40 cm²) + (36 cm * 8 cm)
Surface Area = 80 cm² + 288 cm²
Surface Area = 368 cm²
Therefore, to cover the wedge of cheese with plastic wrap, 368 cm² of plastic wrap is needed. None of the provided options match this answer, so the correct one isn't listed.
A wedge of cheese is shaped like a triangular prism. How much plastic wrap is needed to cover the wedge of cheese?
(1 point)
240 cm₴
330 cm?
287 cm-
810 cm?
1 answer