Perimeter
A square that's 4cm long on each side
16
82
64
32
9
Length = 4
Height = 5
202
Base = 2
Height = 2
2
A triangle that's 9 centimeters on each side
27
122
144
82
64
Length = 9
Height = 6
54
Base = 4
Height = 6
12
A rectangle with the sides
8cm, 12cm, 8cm, 12cm
40
53
125
36
62
Length = 8
Height = 7
56
Base = 4
Height = 8
16
A pentagon that's 7cm on each side
35
34
81
112
121
Length = 11
Height = 10
110
Base = 8
Height = 8
An octagon that's 12cm on each side
108
44
256
225
152
Length = 15
Height = 11
165
Base = 10
Height = 12
60