Question

A shipping tube is shaped like a right triangular prism. The bases are equilateral triangles with edges of 5 inches and a height of 4.3 inches. The tube is 14 inches long. Find the lateral surface area of the shipping tube.

70 square inches
40 square inches
210 square inches
168 square inches

Answer 1

Answer: 210 SQ. IN.

Explanation:

Answer 2

Option C is the correct answer.

Explanation:

Area of lateral surface = 3 x Area of rectangle

Rectangle is of 5 inches width and 14 inches long.

Area of rectangle = 5 x 14 = 70 square inches

Area of lateral surface = 3 x Area of rectangle

Area of lateral surface = 3 x 70 = 210 square inches

Option C is the correct answer.