What is the lateral area of a triangular prism with base edges all equaling 4 feet and a height of 10 feet?
160 ft2
180 ft2
140 ft2
120 ft2

Question

What is the lateral area of a triangular prism with base edges all equaling 4 feet and a height of 10 feet?
160 ft2
180 ft2
140 ft2
120 ft2

anonymous · Answer

Area of each triangular face = 4*sqrt(3) sq ft = 13.86 sq ft (to 2 dp)
Area of each rectangular face = 40 sq ft

Total area = 2*13.86 + 3*40 = 147.71 sq ft

nottim · Answer

dont see what you need here

experimentx · Answer

120

experimentx · Answer

you should do some reading, you cannot always depend on other for answers.

anonymous · Answer

that exactly what i thought but i wasnt sure

directrix · Answer

Latereal Area = p h where p is the perimeter of the base
LA = (4+4+4) *10
LA = 12*10
LA = 120 square feet