outside perimeter of a composite figure
Geometry
Level
1
Four squares are arranged as shown. If the area of the red square is 100, the area of the green square is 25, the area of the yellow square is 9 and the area of the blue square is unknown, find the outside perimeter of the composite figure.
48
52
42
56
60
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1 solution
P
=
1
0
∗
3
+
5
∗
2
+
3
∗
3
+
1
+
2
=
5
2
u
n
i
t
s