A triangle has three internal angles and three external angles, for a total of six angles.
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The sum of the three angles of a triangle is always 180º
A triangle, all of whose angles are acute.A triangle, all of whose angles are acute.A triangle, all of whose angles are acute.A triangle, all of whose angles are acute.
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Isosceles triangle have two equal angles2
There are 3 angles in a triangle and they add up to 180 degrees