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Has an isosceles triangle have an obtuse angle?
Not necessarily. The two equal angles in an isosceles triangle must both be acute angles. If they were right angles or obtuse angles then a triangle could not be formed. If the two equal angles are less than 45° each then the third angle is an obtuse angle. If they are both 45° then the third angle is a right angle and if they are both greater than 45° then the third angle is an acute angle.
Does a scalene triangle have 2 obtuse angles also?
It's impossible for a triangle to have 2 obtuse angles. A scalene triangle in one that has no equal angles or sides. It could have 1 obtuse angle or it could have 0.
Are right triangle isosceles?
sometimes An Isosceles Triangle has 2 equal sides and 2 equal angles. A right triangle could fit the description
Which angles could form an obtuse triangle?
Any triangle with one angle in the range (90, 180) degrees and the other two angles adding up to its supplement will form an obtuse triangle.
Could a right triangle ever be equilateral triangle?
No but it is possible for it to be an isosceles triangle with angles of 45, 45 and 90 degrees
