First, calculate the surface area of the triangular prism:
S.A. = 2(base area) + (perimeter of base) x (height)
To find the base area, first calculate the area of the triangle:
Area = 0.5 x base x height
Area = 0.5 x 27.9 cm x 28.4 cm
Area = 394.908 cm2
Now, calculate the perimeter of the base:
Perimeter = 27.9 cm + 28.4 cm + 30.5 cm
Perimeter = 86.8 cm
Now, calculate the total surface area:
S.A. = 2(394.908 cm2) + 86.8 cm x 5.1 cm
S.A. = 789.816 cm2 + 442.68 cm2
S.A. = 1232.496 cm2
Therefore, you would need approximately 1232 cm2 of wrapping paper to wrap the toy.
The prism is 5.1 cm tall, 27.9 cm long, 28.4 cm long triangle side, 30.5 cm wide.
S.A. A toy came in a container that is shaped like a triangular prism. How much wrapping paper is needed to wrap the toy? Round your answer to the nearest whole number. (1 point) S.A.= ___ cm2
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