Page 122 - NUMINO Challenge_D1
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3 An equilateral triangle with sides of 10 cm is slid across a bar that is 1 m
long, as shown below. Find the distance that Point moves.

4 There are two coins. Coin is fixed, and Coin rotates around Coin
. When Coin has made one complete revolution around Coin
without slipping, and arrives back at the starting point, how many times
has Coin rotated?

119Measurement
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