MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Right-Angle and Straight Line Angles Round a Point www.mathsrevision.com Vertically Opposite Angles.

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MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Right-Angle and Straight Line Angles Round a Point Vertically Opposite Angles Angles in a Triangle Angles Mixed Questions

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Starter Questions

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Learning Intention Success Criteria 1.To know 360 o in a circle. 1.To calculate missing angle give all other angles. 2.Find missing angle given all other angles. Find Missing Angles

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Find Missing Angle 65 o Two angles making a straight line add to 180 o (Supplementary angles) 115 o 35 o Two angles making a right angle add to 90 o (Complementary angles) 55 o Demo

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Find Missing Angle Find the compliment of 30 o. Find the supplement of 130 o

MTH 3-17a 5-Mar-16Created by Mr. Lafferty Maths Dept. Now try TJ3a Ex 1 Ch3 (page 23) Find Missing Angles

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Starter Questions Q3.Calculate 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. Q4.Round the following to nearest (a)12,501(b)369,765

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Learning Intention Success Criteria 1.Know how to find the angle round a point. 1.We are learning to find the missing angle round a point. Find Missing Angles

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Find Missing Angle 120 o 95 o Angles round a point always add up to 360 o 145 o Demo

MTH 3-17a 5-Mar-16Created by Mr. Lafferty Maths Dept. Now try TJ3a Ex 2 Ch3 (page 25) Find Missing Angles

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Starter Questions Q3.Calculate 5.65 – 1.3 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. Q4.Round the following to nearest 100. (a)13,551(b)369,449

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Learning Intention Success Criteria 1.Know how to find a Vertically Opposite angle. 1.We are learning to find Vertically Opposite angles. Find Missing Angles

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Find Missing Angle Angles opposite each other at a cross are equal. 34 o 146 o 146 o Vertically Opposite Demo

MTH 3-17a 5-Mar-16Created by Mr. Lafferty Maths Dept. Now try TJ3a Ex 3 Ch3 (page 26) Vertically Opposite

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Starter Questions Starter Questions 75 o xoxo

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Sum of Angles in a Triangle Learning Intention Success Criteria 1.To know all angles in a triangle add to 180 o. 1.We are learning that all the angles in a triangle sum to 180 o. 2.Use knowledge to solve problems.

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept To determine the angle sum of any Triangle Cut off corners 

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept angle sum of any Triangle All angles in a triangle ALWAYS added up to180 o 180 o

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Sum of Angles in a Triangle Find the missing angle. 70 o 80 o o

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Sum of Angles in a Triangle Find the missing angles. 50 o xoxo xoxo o

MTH 3-17a Sum of Angles in a Triangle 5-Mar-16Created by Mr.Lafferty Math Dept Find the missing angles. 50 o aoao bobo o 60 o o

MTH 3-17a Sum of Angles in a Triangle 5-Mar-16Created by Mr.Lafferty Math Dept Find the missing angles. 50 o e dodo o o

MTH 3-17a 5-Mar-16Created by Mr. Lafferty Maths Dept. Now try TJ3a Ex 4 Ch3 (page 27) Angles in a Triangle

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Find Missing Angle 115 o 85 o Angles round a point always add up to 360 o 45 o Two angles making a straight line add to 180 o (Supplementary angles) angles opposite each other at a cross are equal. 63 o 135 o 117 o 117 o 160 o 29 o Two angles making a right angle add to 90 o (Complementary angles) 61 o Demo

MTH 3-17a 5-Mar-16Created by Mr.Lafferty Math Dept Sum of Angles in a Triangle 32 o 50 o 38 o 85 o xoxo xoxo xoxo xoxo All the angles in a Triangle add up to 180 o Demo

MTH 3-17a 5-Mar-16Created by Mr. Lafferty Maths Dept. Now try TJ3a Ex 5 Ch3 (page 30) Angles in a Triangle Have you updated your Learning Log ? Are you on Target ? I can ?