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NAME ___________________________________________________ DATE _____________________ PERIOD __________
Lesson 3 Homework PracticeArea of Composite Figures
Find the area of each figure. Round to the nearest tenth if necessary. 1.
5 mm
12 mm7 mm
10 mm
2. 1.4 cm
0.8 cm
1 cm
4 cm
2.2 cm 3.
5 in.
3 in.
8 in.
4 in.
4. 3.5 yd
4 yd
4 yd
8 yd
4 yd
2 yd
4 yd
2 yd
180 m m 2 9.2 c m 2 73.1 i n 2 100.4 y d 2
5.
1 m
1 m
3 m
3 m
1.5 m
6. 4 ft
4 ft 6 ft6 ft
7.
6 in.
6 in. 6 in.
8. 10 m
7 m 7 m
8.4 m 2 46.3 f t 2 156.8 i n 2 147.0 m 2
9. What is the area of a figure formed using a square with sides of 15 centimeters and four attached semicircles? 578.4 c m 2
10. Find the area of a figure formed using a parallelogram with a base of 10 yards and a height of 12 yards and two triangles with bases of 10 yards and heights of 5 yards. 170 y d 2
Find the area of each shaded area. Round to the nearest tenth, if necessary. (Hint: Find the total area and subtract the non-shaded area.) 11. 28 in.
32 in.
16 in.
12. 12 ft
10 ft
16 ft
13. 3 cm
1 cm
1.5 cm
1.5 cm
2 cm
468.2 i n 2 17.5 f t 2 6.6 c m 2
14. What is the area of the track in the Circus Maximus as represented below? The center barrier was named the spina. 48,185.3 y d 2
35 yd
35 yd
16 yd
334 yd
591 yd 43 yd
8 yd8 yd
Answers were computed using the π key on a calculator.
Program: Pre-Algebra
Vendor: Aptara
Component: ANC_C12_L3
Grade: AMPDF Pages
Math Accelerated • Chapter 12 Volume and Surface Area
011_015_AM_ANC_C12_L3_664489.indd Page 13 7/26/12 2:48 AM s-74user011_015_AM_ANC_C12_L3_664489.indd Page 13 7/26/12 2:48 AM s-74user /Volumes/104/GO01101_del/Accelerated_Maths_2014/PRE_ALGEBRA/ANCILLARIES.../Volumes/104/GO01101_del/Accelerated_Maths_2014/PRE_ALGEBRA/ANCILLARIES...
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