90 degrees
angles that measure 90 degrees.
If it has no right angles, it is not a right triangle and therefore you cannot name a hypotenuse of that triangle. Which implies you cannot find that side's measure.
Is a right angled triangle.
A Triangle which do not have a right angle.
An acute triangle.
No.
Yes in a 90 45 45 triangle
A right triangle. Also an isosceles triangle.
If you mean angles then it is a right angle triangle or an isosceles right angle triangle
Since the sum of the measures of the angles in a triangle is 180°, and a right angle has a measure of 90°, it follows that the other two angles together have a measure of 90°.
no. the angles in a triangle must add up to 180 degrees. The right triangles must have an right angle (90 degrees). If you add up all the angles they will not measure 180 degrees.
An isosceles triangle can have 1 right angle providing that the other 2 angles each measure 45 degrees.