Answer:
The sum of all the exterior angles in a polygon is equal to 360 degrees.
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Answer:
Step-by-step explanation:
39²=1521
80²=6400
39²+80²=1521+6400=7921
87²=7569
7921≠7569
so it is not aright angled triangle.
Answer:
I suggest you use Socratic, it solves questions like this.
Step-by-step explanation:
Answer:
Its 49
Step-by-step explanation:
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