NAME
DATE
11-4
PERIOD
Practice
Areas of Regular Polygons and Composite Figures
Find the area of each regular polygon. Round to the nearest tenth.
1.
2.
14 cm
7m
84.9 cm2
178.0 m2
C11-018A-890520-B
Find
the area of each figure. Round to the nearest tenth if necessary.
C11-018A-890520-A
3.
4.
20 mm
38 ft
22 ft
20 mm
22 ft
400 mm
869.6 ft
2
2
Geo-SG11-04-10-860188
Geo-SG11-04-09-860188
5.
6.
9m
20 in.
30 in.
13 in.
7m
143.8 m2
952.4 in2
Geo-SG11-04-11-860188
Geo-SG11-04-12-860188
7. LANDSCAPING One of the displays at a botanical garden is a koi pond with a walkway
around it. The figure shows the dimensions of the pond and the walkway.
7 ft
15 ft
13 ft
35 ft
a. Find the area of the pond to the nearest tenth.
Geo-SG11-04-15-860188
129.5
ft2
b. Find the area of the walkway to the nearest tenth.
572.2 ft2
Chapter 11
28
Glencoe Geometry
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
13 in.
23 m