Surface Area of rectangular and Triangular Prisms

Front

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

Back

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

Front

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

Back

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

Front

How many faces does a triangular prism have?

Back

5 faces.

Front

How many faces does a rectangular prism have?

Back

6 faces.

Front

What is the total surface area of a rectangular prism with dimensions 7 inches (length), 3 inches (width), and 5 inches (height)?

Back

142 in².

Front

What is the total surface area of a triangular prism with a base area of 20 cm² and a height of 10 cm?

Back

Surface Area = 20 + (perimeter of base * 10).

Front

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

Back

Perimeter = 3 + 4 + 5 = 12 cm.

Front

If a rectangular prism has a length of 10 cm, width of 4 cm, and height of 2 cm, what is its surface area?

Back

Surface Area = 2(10*4 + 10*2 + 4*2) = 2(40 + 20 + 8) = 2(68) = 136 cm².

Front

What is the difference between surface area and volume?

Back

Surface area measures the total area of the surface of a 3D object, while volume measures the amount of space inside the object.

Front

How do you calculate the surface area of a prism?

Back

Add the areas of all the faces of the prism.