Question

Find the area of sector of a circle with radius 4cm and angle 30 degree also find area of coresponding major region

Answer 1

Hey !!! ^_^

Here is your answer

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Area of Sector = θ/360 × ∏ × r²

Where ,

θ = 30

r = 4 cm

Area of Sector........

= 30/360 × 22/7 × (4)²


= 1/2 × 22/7 × 16

= 22/7 × 8

= 176/7

= 25.15 cm ² (approx)

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Area of major Corresponding side are ...

Area of Circle - Area of Sector

［ ∏ r ² - 25.15 ］cm²

［ (22/7 × 16) - 25.15 ］cm²

［ 50.29 - 25.15 ］cm²

［ 25.14 ］cm²

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I HOPE IT WILL HELP YOU

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Answer 2

by subtracting area of minor sector from area of circle we get the answer 46.09cm^2