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MFM 1PI U6 D4 Area of Composite figures.notebook 1 March 02, 2016 Warmup: What shapes are in the diagram? last day: Applications of Pythagorean Theorem Today: Area of Composite figures Area of Composite Figures What is a composite figure? A figure made up of 2 or more regular shapes.

Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

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Page 1: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

1

March 02, 2016

Warm­up:  What shapes are in the diagram?

last day: Applications of Pythagorean Theorem

Today: Area of Composite figures

Area of Composite Figures

What is a composite figure?

A figure made up of 2 or more regular shapes.

Page 2: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

2

March 02, 2016

What shapes can you see in this back yard plan?

Page 3: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

3

March 02, 2016

Page 4: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

4

March 02, 2016

Page 5: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

5

March 02, 2016

Page 6: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

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March 02, 2016

Page 7: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

7

March 02, 2016

Page 8: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

8

March 02, 2016

Page 9: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

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March 02, 2016

Ex. 1)  Find the area of each composite figure.a)  the key on a basketball court.

15 cm

33 cm

10 cm

20 cm

2 cm

15 cm

b)  Find the area.  Round to the nearest cm.

c)

17m

20 m

1.  divide the figure into regular shapes.  Identify the formulas needed.

2. Find the missing measurements 

3.  Calculate the areas  and add them together.

1.  divide the figure into regular shapes.  Identify the formulas needed.

2. Find the missing measurements 

3.  Calculate the areas  and add them together.

1.  divide the figure into regular shapes.  Identify the formulas needed.

2. Find the missing measurements 

3.  Calculate the areas  and SUBTRACT the cut out area

Page 10: Area of Composite Figuresteachers.wrdsb.ca/.../D4-Area-of-Composite-figure-blank.pdf · 2017. 2. 18. · MFM 1PI U6 D4 Area of Composite figures.notebook 9 March 02, 2016 Ex. 1) Find

MFM 1PI ­ U6 ­ D4 ­ Area of Composite figures.notebook

10

March 02, 2016

15 ft

30 ft

2 ft

d)  Mrs. V. wants to sod her lawn.  i)Determine how much sod she needs if one roll covers 4ft2.  Don't forget that she has a circular fire pit and a trapezoidal deck.

ii)  How much will it cost if one roll is $2.50?

1.  divide the figure into regular shapes.  Identify the formulas needed.

2. Find the missing measurements 

3.  Calculate the areas  and add or subtract as necessary.

10 ft

12 ft

4. determine the # of rolls required.

practice:  pg 12­14 # 1­3ac, 4, 5c