Official papers

Official 2022 Paper 1 · Q4

Paper 1Algebra

Diagram for question 4 These sectors of circles are similar.

The arc length of the smaller sector is 6.

The difference between the areas of the sectors is 21.

Find the positive difference between the perimeters of the sectors.

A4.54.5
B77
C88
D99
E10.510.5
F1414
G1515

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