Surface Area of Rectangular and Triangular Prisms Practice

Front

What is a net?

Back

A flat, 'unfolded' representation of a 3-D figure.

Front

What do we call a flat representation of a 3-D object?

Back

Net.

Front

What is the formula for the surface area of a rectangular prism?

Back

Surface Area = 2lw + 2lh + 2wh (where l = length, w = width, h = height).

Front

What is the total surface area of a rectangular prism with dimensions 3 in, 4 in, and 5 in?

Back

46 in².

Front

What is the surface area of a triangular prism?

Back

Surface Area = (Base Area x 2) + (Perimeter x Height).

Front

How do you find the area of a triangle?

Back

Area = 1/2 x base x height.

Front

What is the total surface area of a rectangular prism with a net showing 6 rectangles?

Back

Add the areas of all rectangles in the net.

Front

If a rectangular prism has a length of 10 in, width of 5 in, and height of 2 in, what is its surface area?

Back

Surface Area = 2(10*5 + 10*2 + 5*2) = 140 in².

Front

What is the surface area of a cube with a side length of 4 in?

Back

Surface Area = 6 * (side length)² = 96 in².

Front

What is the perimeter of a triangle with sides measuring 3 in, 4 in, and 5 in?

Back

Perimeter = 3 + 4 + 5 = 12 in.