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10 questions from this quiz
Total length of outside boundary
P=2l+2wP = 2l + 2wP=2l+2w
P=4sP = 4sP=4s
C=π×dC = \pi \times dC=π×d
d=2rd = 2rd=2r
3.1423.1423.142
Use string around edge, then measure it
1500 cm
mm, cm, m, km
Circumference
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