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Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use. NAME ___________________________________________________ DATE _____________________ PERIOD __________ Lesson 3 Homework Practice Area of Composite Figures Find the area of each figure. Round to the nearest tenth if necessary. 1. 5 mm 12 mm 7 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 mm 2 9.2 cm 2 73.1 in 2 100.4 yd 2 5. 1 m 1 m 3 m 3 m 1.5 m 6. 4 ft 4 ft 6 ft 6 ft 7. 6 in. 6 in. 6 in. 8. 10 m 7 m 7 m 8.4 m 2 46.3 ft 2 156.8 in 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 cm 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 yd 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 in 2 17.5 ft 2 6.6 cm 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 yd 2 35 yd 35 yd 16 yd 334 yd 591 yd 43 yd 8 yd 8 yd Answers were computed using the π key on a calculator. Math Accelerated • Chapter 12 Volume and Surface Area

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Page 1: NAME DATE PERIOD Lesson 3 Homework Practice · NAME _____ DATE _____ PERIOD _____ Lesson 3 Homework Practice Area of Composite Figures Find the area of each figure. Round to the nearest

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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

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

1 m

3 m

1.5 m

6. 4 ft

4 ft 6 ft6 ft

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

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

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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