Mathematics · May / June 2021 · Paper 22 · Question 19

77.3 or 77.32 to 77.33… [3]

M2 for 360 − 60 × π × 12.4 × 2 oe 360 [± n × 12.4]

or M1 for angle 60° or 300° soi k or for × π × 12.4 × 2 oe [± n × 12.4] 360

5.17 or 5.172 to 5.173… [3]

M2 for 74.5 360 2 × = r oe or better π 360 − 41 360 − 41 2

or M1 for 74.5 = × π r oe 360 74.5 360 or for × oe π k