1. What is the formula for finding the surface area of a rectangular prism?
A) SA = 2lw + 2lh + 2wh
B) SA = lw + lh + wh
C) SA = 2(l + w + h)
D) SA = 2lw
2. Calculate the surface area of a rectangular prism with dimensions length = 5 cm, width = 3 cm, height = 4 cm.
A) 50 cm²
B) 62 cm²
C) 74 cm²
D) 46 cm²
3. What is the formula for finding the surface area of a triangular prism?
A) SA = base perimeter x height + 2 x base area
B) SA = base area x height + 2(base perimeter)
C) SA = base area x height + base perimeter
D) SA = 2(base perimeter) x height + base area
4. Calculate the surface area of a triangular prism with base dimensions base = 4 cm, height = 5 cm, prism height = 6 cm.
A) 60 cm²
B) 82 cm²
C) 74 cm²
D) 46 cm²
5. What is the formula for finding the surface area of a cylinder?
A) SA = 2πrh + 2πr²
B) SA = πr²h
C) SA = πr²
D) SA = 2πr
6. Calculate the surface area of a cylinder with radius = 3 cm, height = 8 cm.
A) 150.72 cm²
B) 179.52 cm²
C) 128.48 cm²
D) 113.04 cm²
7. What is the formula for finding the surface area of a cone?
A) SA = πrl + πr²
B) SA = πr² + πrl
C) SA = 2πr
D) SA = 1/2πr²h
8. Calculate the surface area of a cone with radius = 4 cm, slant height = 6 cm.
A) 100.48 cm²
B) 75.36 cm²
C) 69.34 cm²
D) 82.24 cm²
9. What is the formula for finding the surface area of a sphere?
A) SA = 4πr
B) SA = 4/3πr³
C) SA = 4πr²
D) SA = πd
10. Calculate the surface area of a sphere with radius = 5 cm.
A) 314.16 cm²
B) 251.20 cm²
C) 392.25 cm²
D) 523.60 cm²
Answer Key:
1. A) SA = 2lw + 2lh + 2wh
2. B) 62 cm²
3. A) SA = base perimeter x height + 2 x base area
4. A) 60 cm²
5. A) SA = 2πrh + 2πr²
6. A) 150.72 cm²
7. B) SA = πr² + πrl
8. A) 100.48 cm²
9. C) SA = 4πr²
10. A) 314.16 cm²
Surface Area Unit Test
23-24 Math 7 B; TN; 6.23 / Surface Area
1 answer