Created by Mr.Lafferty Math Dept Angles Level E Revising Basic Angles Naming Angles Calculating Missing angles Angles in a Triangle www.mathsrevision.com Corresponding Angles Alternate Angles 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Starter Questions Level E Q1. Convert to the 24 hour clock. (a) 7:25 pm (b) 6:50 am Q2. Write down the type of angle that is less than 90 deg. www.mathsrevision.com Q3. Calculate 2.34 + 4.7 + 0.12 Q4. Round the following to nearest 1000. (a) 12,501 (b) 369,765 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Type of Angles Level E Learning Intention Success Criteria To revise Type of Angles from level D. To be able to identify acute, right-angle, obtuse, straight line and reflex angles. www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Type of Angles Level E Horizontal Vertical Acute less than 90o Obtuse Between 90o – 180o Right - Angle exactly 90o www.mathsrevision.com Straight Line Angle exactly 180o reflex over 180o less than 360o 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Type of Angles Level E Now try Ch12 (page 146) Exercise 1 www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Starter Questions Level E Q1. Convert to the 12 hour clock. (a) 17:15 (b) 05:40 Q2. Write down 2 numbers that add to give 8 and multiply to give 15. www.mathsrevision.com Q3. Calculate 5.65 – 1.3 Q4. Round the following to nearest 100. (a) 13,551 (b) 369,449 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Naming Angles Level E Learning Intention Success Criteria To explain how we name angles by THREE capital letters with the angle sign. The middle letter being where the angle is. To be able to name an angle. Understand the difference between the type of angle and the name of an angle. www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Naming Angles Level E A X B Y C Z Type of angle is acute Type of angle is obtuse www.mathsrevision.com Name of angle is ∠ ABC Name of angle is ∠ ZYX MIDDLE LETTER IS ALWAYS WHERE THE ANGLE IS ALWAYS 3 CAPITAL LETTERS 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Naming Angles Level E Now try Ch12 (page 147) Exercise 2 www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Starter Questions Level E www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Find Missing Angles Level E Learning Intention Success Criteria To calculate missing angle give all other angles. To know 360o in a circle. Find missing angle given all other angles. www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Find Missing Angle www.mathsrevision.com 55o 115o 146o 145o 146o 65o Level E 65o 35o 55o 115o Two angles making a straight line add to 180o (Supplementary angles) Two angles making a right angle add to 90o (Complementary angles) www.mathsrevision.com 120o 95o 146o 34o 146o 145o angles opposite each other at a cross are equal. Angles round a point always add up to 360o 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Find Missing Angle Level E Now try Ch12 (page 149) Exercise 3 www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Level E Starter Questions xo www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Sum of Angles in a Triangle Level E Learning Intention Success Criteria To show that all the angles in a triangle sum to 180o. To know all angles in a triangle add to 180o. Use knowledge to solve problems. www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

www.mathsrevision.com To determine the angle sum of any Triangle Level E Cut off corners  Cut off corners  www.mathsrevision.com Cut off corners  30-Nov-18 Created by Mr.Lafferty Math Dept

www.mathsrevision.com angle sum of any Triangle Level E All angles in a triangle ALWAYS added up to180o www.mathsrevision.com 180o 30-Nov-18 Created by Mr.Lafferty Math Dept

Sum of Angles in a Triangle Level E Copy out the following triangles and find the missing angles. 50o xo 38o 87o www.mathsrevision.com xo 32o xo xo Remember all the angles add up to 180o 30-Nov-18 Created by Mr.Lafferty Math Dept

Sum of Angles in a Triangle Level E Now try Ch12 (page 151) Exercise 4 starter at Q3 www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Starter Questions Level E Q1. Solve the equation below Q2. Find two numbers that multiply add to give 18 and subtract to give 3. www.mathsrevision.com Q3. Find the average and range of the numbers below 2,8,8,10 Q4. Find 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E Learning Intention Success Criteria 1. To explain the term corresponding angles and show how we use the property to solve problems. To understand the term corresponding angles. 2. To be able to use property to solve problems. www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E Which angles are equal? www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E www.mathsrevision.com Which angles are equal? 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E Which angles are equal to the shaded angle? www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Which angles are equal to the shaded angle? Level E Which angles are equal to the shaded angle? www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E look for www.mathsrevision.com shapes 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E What is the value of letter x? 120 www.mathsrevision.com 120 x 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E 100 What is the value of letter a? www.mathsrevision.com 100 a 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E b 48 48 www.mathsrevision.com What is the value of letter b? 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E What is the value of letter c? 110 www.mathsrevision.com 110 c 30-Nov-18 Created by Mr.Lafferty Math Dept

What are the values of letters a and b? Angles Corresponding Angles Level E 70 70 What are the values of letters a and b? b 110 www.mathsrevision.com a 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Corresponding Angles Level E 115 www.mathsrevision.com 65 65 What are the values of the missing angles? 115 30-Nov-18 Created by Mr.Lafferty Math Dept

What are the values of the missing angles? Corresponding Angles Level E 123 57 57 What are the values of the missing angles? 123 www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Angles Now try Exercise 5 Ch12 (page 154) www.mathsrevision.com Level E Corresponding Angles Now try Exercise 5 Ch12 (page 154) www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Starter Questions Level E Q1. Solve the equation below Q2. Find two numbers that multiply to give 48 and divide to give 3. 119o www.mathsrevision.com Q3. Find missing angles bo ao 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles Level E Learning Intention Success Criteria 1. To explain the term alternate angles and show how we use the property to solve problems. To understand the term alternate angles. 2. To be able to use property to solve problems. www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles Level E Look for - Z shapes www.mathsrevision.com = equal angles 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles Level E Find the value of a ? 35 www.mathsrevision.com 35 a 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles Level E b 43 Find the value of b ? www.mathsrevision.com 43 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles Level E Find the value of c ? 33 www.mathsrevision.com 33 c 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles Level E 123 Find the value of d ? www.mathsrevision.com 123 d 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles Level E 50 Find the value a and b ? www.mathsrevision.com a 130 b 50 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles Level E 135 Find the value of a and b ? c 45 www.mathsrevision.com 45 d 30-Nov-18 Created by Mr.Lafferty Math Dept

Created by Mr.Lafferty Math Dept Angles Alternate Angles 60 c 120 Find the value a, b and c ? www.mathsrevision.com 120 b 60 a 30-Nov-18 Created by Mr.Lafferty Math Dept

Angles Now try Exercise 6 Ch12 (page 157) www.mathsrevision.com Level E Alternate Angles Now try Exercise 6 Ch12 (page 157) www.mathsrevision.com 30-Nov-18 Created by Mr.Lafferty Math Dept