Surface Area of Rectangular Prisms

Front

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

Back

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

Front

If a rectangular prism has a length of 4 ft, width of 3 ft, and height of 2 ft, what is its surface area?

Back

Surface Area = 2(4*3 + 4*2 + 3*2) = 2(12 + 8 + 6) = 2(26) = 52 ft².

Front

What does the term 'net' mean in relation to 3D shapes?

Back

A net is a two-dimensional representation of a three-dimensional shape that can be folded to form the shape.

Front

How many square units are in 1 square yard?

Back

1 square yard = 9 square feet.

Front

What is the surface area of a rectangular prism with dimensions 5 ft x 2 ft x 3 ft?

Back

Surface Area = 62 ft².

Front

If the surface area of a rectangular prism is 48 yd², what could be the dimensions?

Back

Possible dimensions could be 4 yd x 3 yd x 2 yd.

Front

What is the significance of counting unit squares in finding surface area?

Back

Counting unit squares helps visualize and calculate the total area of each face of the prism.

Front

What is the surface area of a rectangular prism with a length of 10 ft, width of 5 ft, and height of 2 ft?

Back

Surface Area = 2(10*5 + 10*2 + 5*2) = 2(50 + 20 + 10) = 2(80) = 160 ft².

Front

What is the surface area of a cube with a side length of 3 ft?

Back

Surface Area = 6s² = 6(3)² = 6(9) = 54 ft².

Front

How do you find the surface area of a shape represented by a net?

Back

Add the areas of all the individual faces represented in the net.