Mathematics · May / June 2022 · Paper 21 · Question 12
0580
As printed in the paper
The question as text
The interior angles of a pentagon are in the ratio . 4 5 5 7 9 | | | | Find the size of the largest angle. [3]
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
162 [3]
− × 3
M2 for (5 2) 180 × k where k = 1, 4, 5, + + + + 4 5 5 7 9 7, 9 n ⩾ 2
or M1 for 180n ÷ (4 + 5 + 5 + 7 + 9) where or for (5 – 2) × 180 oe
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.