NAME _____________________________________________ DATE __________________ PERIOD _________
Lesson 7 Skills Practice
Surface Area of Pyramids
Find the total surface area of each pyramid. Round to the nearest
tenth if necessary.
1.
2.
12 in.
15 in.
15 in.
3.
4.
9 cm
10 m
16 m
6 cm
10 m
6 cm
6 cm
area of base
2
43.3 m
area of base
2
15.6 cm
5. The base of a square pyramid has a side length of 50 centimeters. The
slant height is 32 centimeters. Find the surface area.
6. An equilateral triangular pyramid has a slant height of 8.3 inches. The
triangular base has a perimeter of 4.8 inches and an area of 1.1 square
inches. Find the surface area of the pyramid.
134
Course 2 • Chapter 8 Measure Figures
Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.
10 m
NAME _____________________________________________ DATE __________________ PERIOD _________
Lesson 7 Skills Practice
Surface Area of Pyramids
Find the total surface area of each pyramid. Round to the nearest
tenth if necessary.
1.
2.
12 in.
15 in.
15 in.
585 in2
960 ft2
3.
4.
9 cm
10 m
16 m
6 cm
10 m
area of base
2
43.3 m
6 cm
6 cm
area of base
2
15.6 cm
96.6 cm2
283.3 m2
5. The base of a square pyramid has a side length of 50 centimeters. The
slant height is 32 centimeters. Find the surface area. 5,700 cm2
6. An equilateral triangular pyramid has a slant height of 8.3 inches. The
triangular base has a perimeter of 4.8 inches and an area of 1.1 square
inches. Find the surface area of the pyramid. 21.02 in2
134
Course 2 • Chapter 8 Measure Figures
Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.
10 m