Math, asked by magiccreator100, 1 year ago

Question Number 22 please.......

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Answered by Alfred003
1

Step-by-step explanation:

Radius of the circle = 40 cm

Angle of the sector = 90°

Area of the sector = Ф/360° * π*r²

                              = 90°/360° * 3.14 * 40 * 40

                              = 1/4 * 314 * 4 *4

                              = 314 * 4

                              = 1256 cm²

Area of right triangle ABC = 1/2*b*h

                                           = 1/2*40*20

                                           = 40*20

                                           = 800 cm²

∴ Area of shaded region = Area of sector - Area of right triangle ABC

                                         = 1256 - 800

                                         = 456 cm²

Answered by 790sudha
2

Answer:

456cm^2 is the correct answer........

mark my answer as a brain list..............

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