Name
Date
SA Prism Practice
Find the surface area of the prism formed by the net above.
1. Find the area of the front face: A = ____  ____ = ____ in2.
The area of the front and back faces is 2  ____  ____ = ____ in2.
2. Find the area of the side face: A = ____  ____ = ____ in2.
The area of 2 side faces is 2  ____  ____ = ____ in2.
3. Find the area of the top face: A = ____  ____ = ____ in2.
The area of the top and bottom faces is 2  ____  ____ = ____ in2.
4. Combine the area of the faces: S = ____ + ____ + ____ = ____ in2.
The surface area of the prism is ____ in2.
5. Use the formula S = Ph + 2B to find the surface area.
The surface area of the prism is ____ in2.
Find the surface area of the prism formed by each net.
6. S = _________________
7. S = _________________
Class
8.
S =_________________
9. S =_________________
10. One quart of the paint Demarco is using will cover 100 square feet. How many
cubes like the one at the right can Demarco paint with 1 quart of paint?
11. Suppose you double each of the dimensions of a rectangular prism. How will the surface area of the new
rectangular prism compare to the surface area of the original rectangular prism? Explain how you
decided upon your answer.
Maintain Your Skills
1. Tara invested $15,000 in an account that pays 4% annual simple interest. Tamara will not make any
additional deposits or withdrawals. How much interest will Tamara earn on her investment at the end of
3 years?
A
B
C
D
$1,800
$600
$450
$1,873
2. An aquarium is being filled with water. The graph shows
the height of the water over time as the aquarium is being filled.
Which statement best describes the rate of change for this situation?
A The height of the water increases 20 inches per second.
B The height of the water increases 1 inch per second.
C The height of the water increases 5 inches per second.
D The height of the water increases 2.5 inches per second.
ANSWERS
1. A = 8  5 = 40 in.2; 2  8  5 = 80 in.2
2. A = 5  3 = 15 in.2; 2  5  3 = 30 in.2
3. A = 8  3 = 24 in.2; 2  8  3 = 48 in.2
4. S = 80 + 30 + 48 = 158 in.2; 158 in.2
5. 158 in2
6. 340 in2
7. 48 cm2
8. 88 in.2
9. 152 in2
10. 4 cubes
11. The surface area will be 4 times as great. Sample answer: Since you are finding area and you multiply
each dimension by 2, the area will be multiplied by 2  2, or 4.
Maintain Your Skills
1. A
2. D