Areas of Composite Shapes

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# Areas of Composite Shapes - PowerPoint PPT Presentation

Areas of Composite Shapes. 2 cm. Area A = ½ x 2 x 3 = ½ x 6 = 3 cm 2. Area C = ½ x 2 x 3 = ½ x 6 = 3 cm 2. 3 cm. A. 5 cm. B. C. 3 cm. 2 cm. Area B = 5 x 6 = 30 cm 2. Total Area = 3 cm 2 + 30 cm 2 + 3 cm 2 = 36 cm 2. 1 cm. 2 cm. 1 cm. Area A = 4 x 4 = 16 cm 2. 1 cm.

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## PowerPoint Slideshow about 'Areas of Composite Shapes' - freira

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### Areas of Composite Shapes

2 cm

Area A

= ½ x 2 x 3

= ½ x 6

= 3 cm2

Area C

= ½ x 2 x 3

= ½ x 6

= 3 cm2

3 cm

A

5 cm

B

C

3 cm

2 cm

Area B

= 5 x 6

= 30 cm2

Total Area

= 3 cm2 + 30 cm2 + 3 cm2

= 36 cm2

1 cm

2 cm

1 cm

Area A

= 4 x 4

= 16 cm2

1 cm

4 cm

1 cm

B

C

A

Area B

= 1 x 1

= 1 cm2

Total Area = Area A – Area B – Area C

= 16 cm2 – 1 cm2 – 0.5 cm2

=14.5 cm2

Area C

= ½ x 1 x 1

= ½ x 1

= 0.5 cm2

Area A

= ½ x 6 x 7

= ½ x 42

= 21 cm2

6 cm

2 cm

B

A

3 cm

7 cm

Area B

= ½ x 2 x 3

= ½ x 6

= 3 cm2

Total Area = Area A – Area B

= 21 cm2 – 3 cm2

= 18 cm2