2. Area of Circles Half the circumference Parallelogram A = b h radius

3. Area of Circles Find the area of each figure. 1. 3 in A =  r 2 A =  ( 3 ) 2 A =  ( 9 ) A =  in 2 20 m 2. A =  r 2 A =  ( 10 ) 2 A =  ( 100 ) A =  m 2

4. Area of Circles Find the area of each figure. 3. 12 cm A =  ( 12 ) A =  cm 2

5. Pg 517 10 – 3 #1 – 9, 10 – 27 Find the area of each circle. Give an exact area and an approximate area to the nearest square unit. A =  r 2 A =  ( 9 ) A =  ft 2 1. r = 3 ft A =  3 2 A = 9  ft 2 A =  r 2 A =  ( 25 ) A =  m 2 2. d = 10 m A =  5 2 A = 25  m 2 r = 5 m

6. Pg 517 10 – 3 #1 – 9, 10 – 27 Find the area of each circle. Give an exact area and an approximate area to the nearest square unit. A =  r 2 A =  ( 400 ) A =  cm 2 3. r = 20 cm A =  20 2 A = 400  cm 2 A =  r 2 A =  ( 144 ) A =  ft 2 =  12 2 = 144  ft 2 4. 12 ft

7. Pg 517 10 – 3 #1 – 9, 10 – 27 Find the area of each circle. Give an exact area and an approximate area to the nearest square unit. A =  r 2 A =  ( 64 ) A =  m 2 =  8 2 = 64  m 2 16 m 5. A =  r 2 A =  ( 900 ) A =  cm 2 =  30 2 = 900  cm 2 60 cm 6.

8. Pg 517 10 – 3 #1 – 9, 10 – 27 Find the area of each figure to the nearest square unit. A = 70 + ½ (  ( 12.25 ) A =  = 70 + 1/2  3.5 2 = 89  in 2 10 in 3.5 in 7 in 7. + 1/2  r 2

9. Pg 517 10 – 3 #1 – 9, 10 – 27 Find the area of each figure to the nearest square unit. A = 1600 + (  ( 400 ) A =  = 1600 +  20 2 = 2856 yd 2 8. +  r 2 40 yd

10. Pg 517 10 – 3 #1 – 9, 10 – 27 9. Which has a greater area, a circle with radius 2 m or a square with side length 2 m? Explain. A = (  ( 4 ) A =  in 2 A =  2 2 A =  r 2 2 m A =  in 2 A = (2) (2)

11. Naming Space Figures Prisms Pyramids Cylinders Cone Sphere

12. Naming Space Figures For each figure, describe the base and name the figure. 1. triangle Triangular prism 2. hexagon Hexagonal pyramid

13. Naming Space Figures Name the figure drawn from each net. 3. Octagonal pyramid 4. Triangular Prism

14. Pg 523 10 – 4 #1 – 6, 8 – 26 For each figure, describe the base(s) and name the figure. 1. hexagon Hexagonal pyramid 2. pentagons Pentagonal prism

15. Pg 523 10 – 4 #1 – 6, 8 – 26 For each figure, describe the base(s) and name the figure. 3. triangles Triangular prism

16. Pg 523 10 – 4 #1 – 6, 8 – 26 Name the space figure you can form from each net. Square prism 4.

17. Pg 523 10 – 4 #1 – 6, 8 – 26 Name the space figure you can form from each net. Triangular Pyramid 5.

18. Pg 523 10 – 4 #1 – 6, 8 – 26 Name the space figure you can form from each net. Triangular Prism 6.

19. Pg 523 10 – 4 #1 – 6, 8 – 26

20. Pg 517 10 – 3 #1 – 9, 10 – 27