find the area of a shaded region
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Answer is in the pic.
Hope to be correct.
Hope to be correct.
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Dolly548:
how it could be a square?
Then find the area of the rectangle and apply the same technique and take the base of the triangle as 15 cm
yeah it's a rectangle..
I agree....
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first find the area of rectangle.
30m*15m=450 m.sq.
the find the area of two quarter circle= a semi circle.
πr^2/2 = 22/7*25 = 78.6 m.sq
then find the area of triangle = b*h/2
=15*10/2=75m.sq
then subtract the sum of area of triangle and semi circle from whole rectangle = 450m.sq-(78.6+75)= 296.2 m.sq
hence area of shaded region = 296.2 m.sq
30m*15m=450 m.sq.
the find the area of two quarter circle= a semi circle.
πr^2/2 = 22/7*25 = 78.6 m.sq
then find the area of triangle = b*h/2
=15*10/2=75m.sq
then subtract the sum of area of triangle and semi circle from whole rectangle = 450m.sq-(78.6+75)= 296.2 m.sq
hence area of shaded region = 296.2 m.sq
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