Asked by Omar

Height: 10 inches
Base Perimeter: 40 inches
Lateral Surface Area: 400 square inches (^^^this is the total surface area of the sides)

What is the Surface Area of the triangular prism?
Answered by Steve
total area = lateral area + area of bases

The area of the base is the area of a triangle with perimeter of 40 inches. unless you say more about the triangle, it's not possible to determine its area.

If it's an equilateral triangle, the just figure the height by using the side which is 40/3.

Or, it may be a right triangle.
Answered by Omar
i still don"t get it
Answered by Steve
me either. what is the shape of the base of the prism? Just saying it's a triangle isn't enough.
Answered by Omar
the picture of the shape looks like a pentagon but the rectangle is much longer
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