Tuesday, December 2, 2014

Maths lesson 9 - areas



To work out an area of a square you have to do side squared - thats how long the side is and times it by itself.

 For a rectangle you have to times the width by the hight so its w X h.


Here are some of my practices

Square - side = 2  Area = 4
side = 5  Area =5x5=25
side = 10  Area =10x10=100


Rectangle
width = 2  hight = 4  Area =2x4=8
width = 1  hight = 5  Area =1x5=5
width = 3  hight = 10  Area =3x10=30




Square
Area = a2
a = length of side
Rectangle
Area = w × h
w = width
h = height
Parallelogram
Area = b × h
b = base
h = vertical height









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