To find the surface area of the triangular prism, we need to find the area of each shape that makes up the prism.
The formula for the surface area of a triangular prism is: 2(lw + lh + wh)
Given the dimensions:
l = 9 cm
w = 13 cm
h = 5 cm
Plug the values into the formula:
Surface Area = 2(9*13 + 9*5 + 13*5)
Surface Area = 2(117 + 45 + 65)
Surface Area = 2(227)
Surface Area = 454 cm²
Therefore, 330 cm² of plastic wrap is needed to cover the wedge of cheese.
The shape is 9 cm 13 cm 5 cm 12 cm A wedge of cheese is shaped like a triangular prism. How much plastic wrap is needed to cover the wedge of cheese?
(1 point)
• 287 cm²
• 330 cm²
• 810 cm²
• 240 cm²
1 answer
4 answers