**Angle Properties**

Starter

Angle Properties

Angle Properties

Starter

Buzzy

Beetroot

Clockwise

Drizzle...

Angles that form straight

lines add up to 180

Angles around a point add up to 360

o

o

Opposite angles are equal sizes.

**L.O. - To calculate the sizes of angles in certain diagrams.**

Activity

Angle Properties

Angles that form a straight

lines add up to 180

Angles around a point add up to 360

o

o

63

a

79

o

o

38

101

103

o

o

o

Angle Properties

63

a

79

o

o

38

101

103

o

o

o

63 + 79 + a = 180

142 + a = 180

a = 180 - 142 = 38

o

o

o

o

o

o

o

o

b

b

38 + 101 + 103 + b = 360

242 + b = 360

b = 360 - 242 = 118

o

o

o

o

o

o

o

o

o

Activity

k = 54

a = 134

n = 108

c = 62

p = 83

d = 133

f = 35 , g = 81

h = 44 , i = 105

p=38 , q=43 , r=99

o

o

o

o

o

o

o

o

o

o

o

o

o

Plenary

Calculate the angle between the minute hand pointing at 10, and the hour hand pointing at 2.

Plenary

Calculate the angle between the minute hand pointing at 10, and the hour hand pointing at 2.

120 degrees

**Activities**

**Activity**

Answers

Answers

**Key**

Examples

Examples

**Worked**

Example

Example