Question

Math 5

A solid is composed of squares and equilateral triangles. Its net is shown below:

A triangular prism and its net are shown. The net is three squares with side length 5 units. Attached above and below the middle square are equal sized triangles.

The area of each triangle is 11 square units. The surface area of the triangular prism is square units. (Input whole number only)

Answer 1

62

Explanation:

The side length of each of the three squares is 4 units. This means the area of each would be 4² = 16 sq. units. For the three, this means the total area is 16(3) = 48 sq. units.

The area of each triangle is 7 sq. units; this means together the area of the two triangles is 2(7) = 14 sq. units.

Together this makes the surface area of the prism 14+48 = 62 sq. units.