Surface Area Rectangular Prisms Nets

You will need to find the surface area of the package.

Surface Area = Find the areas of front, back, left, right, top, bottom.... Then add them all up.

Mathematical Equivalence

ON

What is the surface area of a rectangular prism with length 8 cm, width 5 cm, and height 10 cm?

Answer explanation

To find the surface area of a rectangular prism, use the formula 2lw + 2lh + 2wh. Plugging in the values, we get 2(8*5) + 2(8*10) + 2(5*10) = 260 cm^2.

A rectangular prism has dimensions 8 cm by 5 cm by 2 cm. What is the total surface area?

• 148 cm²

• 132 cm²

• 76 cm²

• 92 cm²

Answer explanation

To find the total surface area of a rectangular prism, use the formula 2lw + 2lh + 2wh. Substituting the given dimensions, we get 2(8*5) + 2(8*2) + 2(5*2) = 132 cm².

• 8 cm

• 10 cm

• 11 cm

• 14 cm

Answer explanation

To find the height of the rectangular prism, divide the surface area by the product of length and width: 448 / (8 * 7) = 8 cm. Therefore, the height is 8 cm.

Which of the following statements is true about the nets of rectangular prisms?

• All nets of rectangular prisms consist of exactly six squares.

• All nets of rectangular prisms consist of exactly six rectangles.

• Nets of rectangular prisms consist of four rectangles and two squares.

• Nets of rectangular prisms can consist of a combination of rectangles and squares, but must total six faces.

Answer explanation

Nets of rectangular prisms can consist of a combination of rectangles and squares, but must total six faces.

What is the formula to calculate the surface area of a rectangular prism?

Answer explanation

The correct formula for calculating the surface area of a rectangular prism is 2lw + 2lh + 2wh, which accounts for the area of all six faces of the prism.

A student claims that the surface area of a rectangular prism can be found by adding the area of all the faces without multiplying any dimensions. Is this statement correct?

• Yes

• No

Answer explanation

No, the statement is incorrect. The surface area of a rectangular prism is found by multiplying the dimensions of the faces, not just adding the areas.

Which figure will this net make?

• Rectangular Prism 

• Triangular Prism

• Triangular Pyramid 

• Cube

Find the surface area of the rectangular prism with the following dimensions: 
length = 10 m
height = 4 m
width = 3 m

• 164 m squared

• 86 m squared 

• 120 m squared

• 180 m squared

Find the surface area of the rectangular prism.

• 94 cm. squared

• 60 cm. squared

• 12 cm. squared

• 19 cm. squared