How to find total surface area for a triangular prism

bh + 3lw

Step-by-step explanation:

A triangular prism is made up of two opposite rectangular surface, two opposite triangular surfaces and its rectangular base.

Area of a triangle = bh

where b is its base, and h is the height.

Total surface area of the two triangular surfaces = bh + bh

                                                     = bh

Area of rectangle = lw

where l is the length and w its width.

The surface area of the rectangles = lw + lw + lw

                                                       = 3lw

Thus,

Total surface area for a triangular prism = bh + 3lw

step-by-step explanation:

why? because i noticed a pattern. 60 120. those numbers without the zero, make the 6 times tables leaving your answer to be b since 6 times 4 is 24 and adding a zero making it 240.

you can use a^2+ b^2=c^2