All triangles have 180o. A right-angled triangle has one right angle. A right angle is 90o.
Right angled triangle.
A right-angled triangle is one which has, as one of the angles, an angle of exactly 90 degrees.
It is a triangle with one right angled vertex.
Triangles measure 180 degrees. A triangle that has one 90 degree angle is known as a right triangle.
A right angled scalene triangle
angles that measure 90 degrees.
An isosceles right-angled triangle
Absolutely not, not ever, nohow! An equilateral triangle has three angles of 60 degrees, a right-angled triangle must have one of 90 degrees.
It is a right triangle or right-angled triangle. The right-angle is 90 degrees.
No, a right-angled triangle cannot have all equal sides. A triangle with all equal sides is an equilateral triangle, and in such triangles, all angles are equal to 60 degrees, which does not satisfy the condition for a right angle (90 degrees). For a triangle to be right-angled, it must have one angle that is exactly 90 degrees.
One angle (corner) must to 90 degrees.
They are: 90 degrees, 45 degrees and 45 degrees