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Why a triangle should have at least two acute angles?
Because the 3 interior angles of any triangle add up to 180 degrees.
Can a triangle have one acute angles?
nope. if it did, the two other ends wouldn't be able to meet with obtuse angles. A triangle must have two or three acute angles. A triangle always has interior angles that sum to 180 degrees. If a triangle had only one acute angle, the sum of its angles would be more than 180 degrees, which is not possible.
All angles in a scalene triangle are acute?
A scalene triangle could have three acute angles, one right angle and two acute angles, or one obtuse angle and two acute angles.
Does an obtuse triangle have two obtuse angles?
No not ever because the 3 interior angles of any triangle add up to 180 degrees and so an obtuse triangle will have 1 obtuse and 2 acute angles.
What triangle is never acute of obtuse?
No triangle is never acute in the sense that every triangle has at least two acute angles.
