S4_3_Credit_Area_Volume_MIA_Chapter_1

# S4_3_Credit_Area_Volume_MIA_Chapter_1 - Volume of Solids...

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Area of Any Triangle Area of Parallelogram Volume of Solids Volume of Solids www.mathsrevision.com Area of Trapezium Composite Area Surface Area of a Cylinder Volume of a Cylinder Composite Volume Exam Type Questions

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Monday 13 February 2012 2 Created by Mr.Lafferty Starter Questions Starter Questions + + = + + 2 6 5 1 (3 1) (2 1) x x x x Q1. True or false Q2. Write down the probability of picking out a number greater than 20 in the national lottery. Q3. If a = -3 and b = -4  does  Q4. Calculate a – 3b = 57 - 4 2 3 1 5 3 www.mathsrevision.com
Monday 13 February 2012 3 Created by Mr.Lafferty Simple Areas Simple Areas Definition : Area is “ how much space a shape takes up”  A few types of special Areas Trapezium Rhombus and kite Parallelogram Any Type of Triangle www.mathsrevision.com

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Monday 13 February 2012 4 Created by Mr.Lafferty Learning Intention Learning Intention Success Criteria Success Criteria 1. 1. To know the formula for the area  To know the formula for the area  of  of  ANY ANY  triangle.  triangle. 1.    To develop a formula for the area of  ANY  triangle. 2. Use the formula to solve problems. 2. 2. Apply formula correctly.  Apply formula correctly.              (showing working) (showing working) 3. 3. Answer containing  Answer containing              appropriate units appropriate units www.mathsrevision.com Any Triangle Area Any Triangle Area
Mo nda y 13 Fe b rua ry 2012 5 C re a te d b y Mr.La ffe rty Any Triangle Area Any Triangle Area = 1 2 Ar e a b h h b Sometimes called  the  altitude h = vertical height www.mathsrevision.com

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Monday 13 February 2012 6 Created by Mr.Lafferty Any Triangle Area Any Triangle Area = = 2 1 8 6 2 2 4 Ar e a Ar e a c m 6cm 8cm Example 1  : Find the area of the triangle. = 1 2 Ar e a b h www.mathsrevision.com
Monday 13 February 2012 7 Created by Mr.Lafferty Any Triangle Area Any Triangle Area = = 2 1 4 10 2 2 0 Ar e a Ar e a c m 10cm 4cm Example 2  : Find the area of the triangle. = 1 2 Ar e a b h Altitude  h  outside triangle this time. www.mathsrevision.com

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Monday 13 February 2012 8 Created by Mr.Lafferty Any Triangle Area Any Triangle Area = = 2 1 8 3 2 12 Ar e a Ar e a c m 5cm 8cm Example 3  : Find the area of the isosceles triangle. = 1 2 Ar e a b h www.mathsrevision.com Hint : Use  Pythagoras Theorem first ! + = + = 2 2 2 2 2 2 4 5 a b c b = - = 2 2 2 2 5 4 9 b b = = 9 3 b b 4cm
Monday 13 February 2012 Created by Mr. Lafferty  @www.mathsrevision.com MIA Ch1 (page 6) www.mathsrevision.com 9

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Mo nda y 13 Fe b rua ry 2012 10 C re a te d b y Mr.La ffe rty Q3. True or false  Starter Questions Starter Questions Q1. Find the area of the triangle. Q2.
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## This note was uploaded on 02/13/2012 for the course MAT 1117 MAT 117 taught by Professor White during the Spring '09 term at University of Phoenix.

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S4_3_Credit_Area_Volume_MIA_Chapter_1 - Volume of Solids...

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