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Published byAugustine Wiggins Modified over 8 years ago

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1 Press Ctrl-A ©G Dear 2010 – Not to be sold/Free to use Area Formulas and Practical Problems Stage 6 - Year 11 Applied Mathematic (Preliminary General 1)

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2 In many industries you will need to find the area of shapes to calculate the amount of material needed. Area = L x B End of Slide So far we have used Rectanglesand Triangles Area = 0.5 x b x h

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3 More Shapes Area Formulas Area = b x h End of Slide Parallelogram b h If b = 6 cm and h = 3 cm then Area = 6 x 3 =18 cm 2

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4 More Shapes Area Formulas Area = 0.5 x d 1 x d 2 End of Slide Rhombus If d 1 = 6 cm and d 2 = 3 cm then Area = 0.5 x 6 x 3 =9 cm 2 d1d1 d2d2

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5 More Shapes Area Formulas Area = 0.5 x d 1 x d 2 End of Slide Kite If d 1 = 8 m and d 2 = 3 m then Area = 0.5 x 6 x 3 =12 m 2 d1d1 d2d2

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6 More Shapes Area Formulas Area = 0.5 x d 1 x d 2 End of Slide Arrowhead If d 1 = 4 m and d 2 = 7 m then Area = 0.5 x 4 x 7 =28 m 2 d1d1 d2d2

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7 More Shapes Area Formulas Area = 0.5 x h x (a + b) End of Slide Trapezium If h = 6 cm, a= 3 cm and b = 5 cm then Area = 0.5 x 6 x (3 + 5) =24 cm 2 b h a

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8 More Shapes Area Formulas Area = π r 2 End of Slide Circle If r = 6 cm then Area = π x 6 2 =113.1 cm 2 r

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