Եռանկյան ներքին անկյունները գումարը
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1.
What geometric transformations took place in the applet above?
2.
When working with the triangle's interior angles, did any of these transformations change the measures of the blue or green angles?
3.
From your observations, what is the sum of the measures of the interior angles of any triangle?
4.
When working with the triangle's exterior angles, did any of these transformations change the measures of the maroon or green angles?
5.
From your observations, what is the sum of the measures of the exterior angles of any triangle?