Measuring with a protractor (2) 1 Circle the greater angle in each pair. a) b) c) d) 2 What is the size of the angle marked in each diagram? a) d) b) e) c) f) 3 a) How do you know, just by looking at the angle, that it is not 30 degrees? b) What mistake do you think Annie has made? © White Rose Maths 2020 90 80 100 70 110 60 120 50 130 40 140 30 150 20 160 10 170 0 180 180 0 170 10 160 20 150 30 140 40 130 50 120 60 110 70 100 80 90 80 100 70 110 60 120 50 130 40 140 30 150 20 160 10 170 0 180 180 0 170 10 160 20 150 30 140 40 130 50 120 60 110 70 100 80 90 80 100 70 110 60 120 50 130 40 140 30 150 20 160 10 170 0 180 180 0 170 10 160 20 150 30 140 40 130 50 120 60 110 70 100 80 90 80 100 70 110 60 120 50 130 40 140 30 150 20 160 10 170 0 180 180 0 170 10 160 20 150 30 140 40 130 50 120 60 110 70 100 80 90 80 100 70 110 60 120 50 130 40 140 30 150 20 160 10 170 0 180 180 0 170 10 160 20 150 30 140 40 130 50 120 60 110 70 100 80 90 80 100 70 110 60 120 50 130 40 140 30 150 20 160 10 170 0 180 180 0 170 10 160 20 150 30 140 40 130 50 120 60 110 70 100 80 The angle marked is 30 degrees. ° ° ° ° ° °
