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Comparing angles
Direct comparison: looking at a pair of angles and trying to decide which one is bigger/smaller; putting one angle on top of the other
Indirect comparison: I wonder if using string to overlay each angle will tell anything? I must try this.
Direct measurement: using a protractor
Indirect measurement: figuring out if they would be supplementary or complementary through measuring
I’m not sure on all of these… it’s food for thought. I was trying to come up with something different than what was already done.