Angles on Parallel Lines Alternate Z angles Alternate

Angles on Parallel Lines

Alternate (Z) angles Alternate Angles are EQUAL x x

Corresponding (F) angles Corresponding Angles are EQUAL x x x x

Supplementary or Co Interior (C) angles Interior Angles add up to 180 a a + b =180 a b b a + b = 180

Look at angle a, write down and angle which is: a) Corresponding with a b) Alternate to a c) Co interior with a h g f e a b d c

Find a, b and c giving reasons for each answer. 27° b a 75° a c 95 ° 120° b 45° c 110 °

Find a, b and c giving reasons for each answer. 27° b a c 95 ° 120° a=27, corresponding angles are equal, b=120 corresponding angles are equal, c=95 supplementary angles add up to 180 75° b 45° a b=45, alternate angles are equal a=105 Supplementary angles add up to 180 c 110 ° c=110, alternate angles are equal

Find a, b and c giving reasons for each answer. b 110 ° 55 ° b c c a 120 ° 115 ° a 25 ° b c a c b a b b c a 10°

Find a, b and c giving reasons for each answer. b 110 ° 55 ° b c c a 120 ° a=70, a and 110 supplementary b=70, b and a corresponding c=110, c and 110 alternate a=60 angles on a line b=60 corresponding angles c=60 alternate angles 115 ° a a=55 corresponding b=55 alternate c=125 supplementary 25 ° b c a=115 corresponding b=65 angles on a line c=65 opposite angles a=155 supplementary b=25 alternate c=25 opposite b c a 10° a=170 supplementary b=170 corresponding c=10 corresponding