isabellahodges38 isabellahodges38

20-05-2018
Mathematics

contestada

find the area of the shaded region; PLEASE HELP ME OUT this is for my final and idk how to do it.. 20 points ignore my work if you need too!

find the area of the shaded region PLEASE HELP ME OUT this is for my final and idk how to do it 20 points ignore my work if you need too class=

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elevatorP6 elevatorP6

20-05-2018

area of a sector of a circle is A = (centralangle/360)*pi*r²
so the area of the sector is

A = (90/360)*pi*6^2 = 9pi m²

area of the triangle is 1/2*b*h = 1/2*6*6 = 18 m²

area of shaded region is the area of the sector minus the area of triangle

so (9pi - 18) m² or approximately 10.274 m²

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