AQA Maths Module 5 exam, Revising Lenths..

contains the perimiter of a rectangle, circumference of a circle and length of an arc.

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Perimiter of a rectangle.

Perimeter of a rectangle:

= Length + Width + Length + Width


= 2(Length) + 2(Width)

1 of 3

Circumference of a circle.

Circumference of a circle:

=  Pi x Diameter

[Circumference means the area around the circle]

2 of 3

Length of an arc.

Length of an arc:

= (theta / 360') x 2(Pi x Radius)

[the theta is the unknown angle of an object]

3 of 3


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