180
2 angles whose sum is 180 are called supplementery angles.an example of supplementary angles are two right angles.=)
Right angles are 90°. The total measure of a triangle is 180°. So, the sum of the other two angles must equal 90°.
Coz all 3 angles have to add to 180. If you add 2 90's you get 180 so there are no angles left for the third corner.
Not always. If two angles are congruent then they simply have equal measure. They must only be right angles if they are supplementary, that is, they must both add up to 180 degrees.
Two.
0 a triangles angles add up to 180 and if they're all the same 180/3=60 which is not 90 thus there are no right angles...
180 Degrees
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As there are 180 degrees in every triangle, and you have to have three angles, you can only have one right angle.
a triangle can have only one right angle because the sum of all the three angles of a triangle has to be 180. so if there are more than one right angles, the sum of the angles will exceed 180 and hence the plane figure will no longer be a triangle
Two right angles add up to 180 degrees because a right angle is 90 degrees
Just 1 when its a right angle triangle and the other 2 angles are acute angles The 3 interior angles add up to 180 degrees
There are 180 degrees in half a turn which is the equivalent of 2 right angles.
A right angle is 90 degrees so two right angles put together would equal 180 degrees