Can you define an isosceles triangle, cause I'm haivng trouble remembering all the characteristics of one?
Thanks.
Think of base angles being the same measure and 2 sides congruent.
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1 answer

The following are angles in a convex quadrilateral:
Angle A = 78 degrees
Angle B = 121 degrees
Angle C = 99 degrees
What is the measure of the missing angle? 👍
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answered by Anonymous
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