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  • Created by: Alex17
  • Created on: 13-12-13 20:58
Circumference of a Circle
Cherry Pie Delicious; Circumference of a circle= πD
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Diameter in a circle
A diameter is a chord that passes through the centre of the circle. (Diameter= radius x2)
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Radius
(Diameter * 2) A radius joins the centre of the circle to any point on the circumference of the circle.
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Working Backwards
C= πD eg. 18.2= 3.14...xD 18.2÷3.14...=D=5.79= 5.8 TO 1D.P
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Area of a circle
(Area of a Circle=- Apple Pies Are Too) πr2 eg. πxr2= 3.14... x 52= 78.5cm2
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Working Backwards
A= πr2 a÷π= r2 R= Square root of A÷π
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Other cards in this set

Card 2

Front

A diameter is a chord that passes through the centre of the circle. (Diameter= radius x2)

Back

Diameter in a circle

Card 3

Front

(Diameter * 2) A radius joins the centre of the circle to any point on the circumference of the circle.

Back

Preview of the back of card 3

Card 4

Front

C= πD eg. 18.2= 3.14...xD 18.2÷3.14...=D=5.79= 5.8 TO 1D.P

Back

Preview of the back of card 4

Card 5

Front

(Area of a Circle=- Apple Pies Are Too) πr2 eg. πxr2= 3.14... x 52= 78.5cm2

Back

Preview of the back of card 5
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