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Sec 1
Math
Perimeter & Area of Plane Figures
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Perimeter
=
Sum
of
length
of
all
sides
Area
=
Amount
of
space
inside
Circumference
of
circle
=
2πr
Area
of
circle
=
πr2
Area
of
parallelogram
=
base
x
perpendicular
height
Area
of
trapezium
=
1/2
x (
sum of parallel sides
) x
height
