ashlynne000
ashlynne000
19-03-2016
Mathematics
contestada
I need help with 18 and 19 please
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Divyankasc
Divyankasc
19-03-2016
18) Angle WZY = 75/2 = 37.5(Angle subtended by an arc on any point on a circe is half the angle subtended at centre)
19) r = 4 ft
Area of the whole circle = (pi)r^2= 22/7 *4*4 = 50.28
Area of the sector = 75/360*50.28= 97.77 ft^2
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