8th STAAR Review - Surface Area

STAAR Review:

Surface Area of Cylinders and Prisms

The area of the surface of a three-dimensional (3D) object, including the bases.

Total Surface Area

The area of the surface of a three-dimensional (3D) object, excluding the bases.

Lateral Surface Area

What is Surface Area?

​Faces & Bases

​Lateral Surface Area of Prisms Formula

Draw

Find the lateral surface area of the rectangular prism. Use the top and bottom as the bases.

Hint: S = Ph

Multiple Choice

Find the lateral surface area of the rectangular prism. Use the top and bottom as the bases.

Hint: S = Ph

• $$S=24.84\ ft^2$$

• $$S=21.12\ ft^2$$

• $$S=31.72\ ft^2$$

• $$S=8.7\ ft^2$$

Draw

Find the lateral surface area of the triangular prism.

Hint: S = Ph

Multiple Choice

Find the lateral surface area of the triangular prism.

Hint: S = Ph

• $$S=65\ cm^2$$

• $$S=72\ cm^2$$

• $$S=210\ cm^2$$

• $$S=50.75\ cm^2$$

​Total Surface Area of Prisms Formula

Draw

Find the total surface area of the rectangular prism.

Hint: S = Ph + 2B

Multiple Choice

Find the total surface area of the rectangular prism.

Hint: S = Ph + 2B

• $$S=24.84\ ft^2$$

• $$S=21.12\ ft^2$$

• $$S=31.72\ ft^2$$

• $$S=47.2\ ft^2$$

Draw

Find the total surface area of the triangular prism.

Hint: S = Ph + 2B

Multiple Choice

Find the total surface area of the triangular prism.

Hint: S = Ph + 2B

• $$S=684\ ft^2$$

• $$S=792ft^2$$

• $$S=12,960\ ft^2$$

• $$S=50.75\ cm^2$$

​Lateral Surface Area of Cylinder Formula

Multiple Choice

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Multiple Choice

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Drag and Drop

If the diameter of a circle is ​

Placeholder

, the radius is ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

10 cm

5 cm

20 cm

2 cm

2.5 cm

Dropdown

What is the radius measurement? ​

Select answer

Draw

Find the lateral surface area of the cylinder.

Hint: $$S=2\pi rh$$

Multiple Choice

Find the lateral surface area of the cylinder.

Hint: $$S=2\pi rh$$

• $$S=58.24\ ft^2$$

• $$S=365.93\ ft^2$$

• $$S=182.97\ ft^2$$

​Total Surface Area of Cylinder Formula

Draw

Find the total surface area of the cylinder.

Hint: $$S=2\pi rh+2\pi r^2$$

Multiple Choice

Find the total surface area of the cylinder.

Hint: $$S=2\pi rh+2\pi r^2$$

• $$S=398.61\ ft^2$$

• $$S=225.44\ \ ft^2$$

• $$S=535.83\ ft^2$$