Question

3) Radius of a circle is 21 cm. Angle of minor sector of a circle is 120°. Then find difference between

minor sector and major sector.​

Answer 1

Answer:

angle of major segment=360-120

240⁰

r=21cm(given)

πr² ×∅/360⁰

πr² ×240/360

πr²×2/3

22/7. ×21×21×2/3

22×21×3

66×21

1386cm²

area of small segment

πr²×120/360

πr²×1/3

22/7 ×21 ×21×1/3

22×21

462cm²

different=major segment-minor segment

1386-462

924cm²

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