NAME _____________________________________________ DATE __________________ PERIOD _________
Homework Practice
Area of Composite Figures
Find the area of each figure. Round to the nearest tenth if necessary.
1.
5.5 ft
2.
3 in.
4 in.
6 in.
3 mm
3.
6 ft
9.3 mm
8 ft
4 in.
7.8 mm
36 in2
40.5 ft2
4.
5 yd
60.8 mm2
12 cm
5.
8 cm
1.8 m
6.
9 cm
3.2 m
4.5 m
4.5 m
12 yd
22 cm
4.5 m
6.5 m
10 yd
145 yd2
186 cm2
36 m2
Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.
In each diagram below, one square unit represents 5 square meters.
Find the area of each figure.
127.5 m2
7.
120 m2
8.
65 yd
9. AUDITORIUM The diagram at the right gives the
dimensions of an auditorium. If new carpet is
needed for the auditorium, what will be the area
of the carpet? Round to the nearest square yard.
55 yd
25 yd
2,575 yd2
40 yd
10. SIDING Use the diagram that shows one end of a cottage.
a. Each end of the cottage needs new siding. Find the
total area that needs new siding. 588 ft2
b. The siding material costs $75 for a bundle of siding
that covers an area of 100 square feet. What will be
the total cost to put siding on both ends of the cottage?
Justify your answer. $450; 588 ÷ 100 = 5.88; Because the
12.5 ft
8.5 ft
28 ft
siding comes in bundles of 100 ft2, 6 bundles are needed. Six
bundles at $75 each are $450.
Area
143