2. Congruent Triangles
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What can you easily measure on a hoop?
Example Solution: Circumference
Explanation: See solution.
All circles have the same shape, so the instructor only needs to check the size of the hoops to make sure they are congruent.
There are several measurements that determine the size of a circle.
For a hoop, the circumference is the easiest to measure with a flexible tape measure.