1. Splash Screen

2. Lesson Menu Five-Minute Check (over Lesson 10–2) Main Idea and Vocabulary Key Concept: Area of a Parallelogram Example 1:Find Areas of Parallelograms Example 2:Find Areas of Parallelograms Example 3:Use Area to Solve a Problem

3. Main Idea/Vocabulary base height Find the areas of parallelograms.

4. KC

5. Example 1 Find Areas of Parallelograms Find the area of the parallelogram. A = bhArea of parallelogram A = 3 ● 10Replace b with 3 and h with 10. A = 30Multiply. Answer: The area is 30 square units or 30 units 2. The base is 3 units, and the height is 10 units.

6. 1.A 2.B 3.C 4.D Example 1 A.18 units 2 B.20 units 2 C.35 units 2 D.40 units 2 Find the area of the parallelogram.

7. Example 2 Find Areas of Parallelograms Find the area of the parallelogram. Answer: The area is 40 square centimeters or 40 cm 2. A = bhArea of parallelogram A = 8 ● 5Replace b with 8 and h with 5. A = 40Multiply. 5 cm 8 cm

8. 1.A 2.B 3.C 4.D Example 2 A.9 in 2 B.18 in 2 C.24 in 2 D.36 in 2 Find the area of the parallelogram.

9. Example 3 INTERIOR DESIGN A particular area rug is shaped like a parallelogram. Find the area of the floor it will cover. The area rug is a parallelogram, so use the formula A = bh. Use Area to Solve a Problem

10. Example 3 A = bhArea of parallelogram Use Area to Solve a Problem Multiply.

11. 1.A 2.B 3.C 4.D Example 3 ART John needs to paint a mural that is parallelogram-shaped. Find the area of the mural John needs to paint. A.144 ft 2 B. C. D.

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13. Resources Five-Minute Check (over Lesson 10–2) Image Bank Math Tools Using a Net to Build a Cube Area of Triangles

14. 1.A 2.B 3.C 4.D Five Minute Check 1 A.2 cm B.3 cm C.6 cm D.12 cm Find the radius of a circle with a diameter of 6 centimeters. (over Lesson 10-2)

15. 1.A 2.B 3.C 4.D Five Minute Check 2 A.5.5 ft B.11 ft C.22 ft D.33 ft Find the diameter of a circle with a radius of 11 feet. (over Lesson 10-2)

16. 1.A 2.B 3.C 4.D Five Minute Check 3 A.15 cm B.18 cm C.25 cm D.30 cm Estimate the circumference of the circle. (over Lesson 10-2)

17. 1.A 2.B 3.C 4.D Five Minute Check 4 A.20 in. B.30 in. C.39 in. D.60 in. Estimate the circumference of the circle. (over Lesson 10-2)

18. 1.A 2.B 3.C 4.D Five Minute Check 5 A.68.4 in. B.62.8 in. C.32.4 in. D.15.7 in. Use a calculator to find the circumference of a circle with a radius of 10 inches. Round to the nearest tenth. (over Lesson 10-2)

19. 1.A 2.B 3.C 4.D Five Minute Check 6 Charlotte has a trampoline in her backyard. The diameter of the trampoline is 14 feet. What method can Charlotte use to find the circumference of the trampoline? (over Lesson 10-2) A.Multiply the diameter by . B.Multiply the diameter by 2, and then multiply by . C.Multiply the diameter by 2. D.Divide the diameter by 2, and then multiply by .

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