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ashlynne000 ashlynne000
  • 19-03-2016
  • Mathematics
Answered

I need help with 18 and 19 please

I need help with 18 and 19 please class=

Verified Answer :

Divyankasc
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 44 = 50.28

Area of the sector = 75/360*50.28= 97.77 ft^2

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