A right angle triangle has a 90 degree angle and two acute angles whereas altogether the three angles add up to 180 degrees.
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A straight angle.
Right Angle.
No. A right angle is defined to be 90 degrees.
The dimensions of any right angle triangle other than an isosceles right triangle which has two equal sides.
A right angle is an angle that is equal to 90 degrees. It looks more like an L-shaped angle.