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What is the measure (in degrees) of the smallest interior angle of a triangle in which the exterior angle measures have the ratio 2:3:4?

 Jun 18, 2021
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The EXTERIOR angles   sum to 360 degrees    so they are 80  120   and 160 degrees

 

The EXTERIOR + corresponding INTERIOR  angle   sum to 180 degrees    so the smallest INTERIOR would be   180 -160 = 20 degrees

 Jun 18, 2021

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