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

Area of Circles Find the area of each figure 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

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

Pg – 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

Pg – 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 ft

Pg – 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.

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

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

Pg – 3 #1 – 9, 10 – 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)

Naming Space Figures Prisms Pyramids Cylinders Cone Sphere

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

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

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

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

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

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

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

Pg – 4 #1 – 6, 8 – 26

Pg – 3 #1 – 9, 10 – 27