Question

a chord of a circle of radius 20 centimetre substance and angle of 90 degree at the centre of the circle find the area of the corresponding major segment of the circle

Answer 1

use this formula then your answer will be there

Answer 2

I really hope it ll help u.
Area of the circle =πr^2=1256cm2
Area of the sector =90/360×3.14×20×20=314cm2
Area of triangle=1/2×20×20=200cm2
So,area of minor segment=314-200=114cm2
Then,area of major segment=1256-114=1142cm2