Find the surface area of the
triangular prism.
10 ft.
3 ft.
3 ft

Given:

The figure of a triangular prism.

To find:

The surface area of the triangular prism.

Solution:

We know that, a triangular prism contains 2 congruent triangular surface and 3 rectangular surface.

Triangles have base 3 ft and height 2 ft.

Area of a triangle is

Area of congruent triangles are congruent. So,

Now the three rectangular surface have dimensions 10 by 3, 10 by 3 and 10 by 3 because the triangles are equilateral and the length of the prism is 10 ft.

Area of a rectangle is

Dimensions of all three rectangles are same, therefore there areas are equal.

Now, the total surface area of the prism is

Therefore, the total surface area of the prism is 96 sq. ft.

3x^3-x^2+6x-9

g

step-by-step explanation: