Surface Area of Rectangular & Triangular Prisms

Front

What is surface area?

Back

The covering of the faces of a 3-D shape.

Front

What shape is the base of a rectangular prism?

Back

Rectangle.

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 shape is the base of a triangular prism?

Back

Triangle.

Front

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

Back

Surface Area = bh + (perimeter of base * height) (where b = base, h = height).

Front

How do you calculate the lateral surface area of a prism?

Back

Lateral Surface Area = perimeter of base * height.

Front

What is the lateral surface area of a rectangular prism with a height of 8 ft and a base perimeter of 20 ft?

Back

Lateral Surface Area = 20 ft * 8 ft = 160 ft².

Front

If a rectangular prism has a length of 10 ft, width of 5 ft, and height of 3 ft, what is its surface area?

Back

Surface Area = 2(10*5 + 10*3 + 5*3) = 2(50 + 30 + 15) = 2(95) = 190 ft².

Front

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

Back

Surface Area = 6 * (side length)² = 6 * (4 cm)² = 96 cm².

Front

What is the difference between total surface area and lateral surface area?

Back

Total surface area includes all faces, while lateral surface area includes only the sides (not the top and bottom).