This is a very simple one to know that all triangles including right angle triangle have 3 sides.
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A Right Triangle is a triangle that has one corner with a 90-degree angle. So a Right Angle is an angle of 90 Degrees or also known as Perpendicular angle.
The sum of all angles in any triangle is 180o The largest angle in aright angle triangle is 90o
two if the triangle has a right angle
It depends. If it is a right isosceles triangle, it has one axis of symmetry (the line which would bisect the right angle). A right scalene triangle has no axis of symmetry.
Two