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The cross is 5 cm high and 5 cm wide. What's its circumference?

The cross is 5 cm high and 5 cm wide. What's its circumference?

Solution:

5x4 = 20cm

Its circumference is 20 cm.

Analysis: By moving,

Move the short sides of the four gaps of the cross upward (downward below), and the short sides are vertical outward.

It becomes a square with a side length of 5 cm.