# Area & Perimeter

Area & Perimeter Of Rectangle
A = l x w______P = 2 ( l + w )
1 of 11
Area & Perimeter Of Square
A = a X a ______ P = 4a
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Area & Perimeter Of Triangle
A = 1/2 bh __ OR __ A = 1/2 ab Sin C ______ P = a + b + c
3 of 11
Area & Perimeter Of Parallelogram
A = bh __ OR __ A = abSinC ______ P = 2 ( a + b )
4 of 11
Area & Perimeter Of Trapezium
A = 1/2 ( a + b ) h ______ P = Sum Of All Sides
5 of 11
Area & Perimeter Of The Circle
A =
6 of 11
Area & Perimeter Of Semi-Circle
A = 1/2
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Area & Perimeter Of Sector
A =
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Area Of Equilateral Triangle
A = √3/4 x a^2
9 of 11
Area Of Rhombus
A = 1/2 b1 + b2
10 of 11
Area of Octagon
A = 2 ( 1 + √2 ) + a^2
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## Other cards in this set

### Card 2

#### Front

A = a X a ______ P = 4a

#### Back

Area & Perimeter Of Square

### Card 3

#### Front

A = 1/2 bh __ OR __ A = 1/2 ab Sin C ______ P = a + b + c

#### Back ### Card 4

#### Front

A = bh __ OR __ A = abSinC ______ P = 2 ( a + b )

#### Back ### Card 5

#### Front

A = 1/2 ( a + b ) h ______ P = Sum Of All Sides

#### Back ## Comments

Report

This resource is explicitly missing three vital pieces of information which are firstly, the area and perimeter of a circle (A=pie x radius^2 and P=2 x pie x radius). Secondly, the area and perimeter of a semi-circle (A=1/2 x pie x radius^2 and P=pie x radius + 2 x radius). Thirdly, the area and perimeter of a sector (A=angle/360 x pie x radius^2 and P= 2 x radius + (angle/180 x 2 x pie x radius)). Whether this is something to do with the loading of the page or the author forgetting to include these I do not know. But the point is if other people can see this the way I have then you have a serious problem that needs solving. I signed up to receive extra revision material only to find parts missing. People expect everything and anything they need to access handy. I suggest the author sorts the problem out ASAP!

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