Angles

OppositeCorresponding

AlternateSupplementary

Opposite Angles• In the diagram below, angles a & b are OPPOSITE angles,

they are the same size.• Angles c & d are OPPOSITE angles and are equal too!

a c

bd

Think ‘X’

shape

Corresponding Angles• In the diagram below, angles a & b are CORRESPONDING

angles, they are the same size.• Angles c & d are CORRESPONDING angles and are equal too!

b

a

d

c

Think ‘F’ shape

Alternate Angles• In the diagram below, angles a & b are ALTERNATE angles,

they are the same size.• Angles c & d are ALTERNATE angles and are equal too!

b

c

d

a

Think ‘Z’ shape

Supplementary Angles• In the diagram below, angles a & b are SUPPLEMENTARY

angles, they add together to make 180°.• Angles c & d are SUPPLEMENTARY angles and add to 180° too!

a

bd

c

Think ‘C’ shape

Find the Angles• In the diagram below, say which letters describe:

a) A pair of opposite anglesb) A pair of corresponding anglesc) A pair of alternate anglesd) A pair of supplementary angles

mn

bcd

a

kj

fgh

e

qrt

p