A right-angled triangle.
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A right triangle because the 90 degree angle creates a corner.
A right triangle because all triangles equal 180 degrees. 180-60=120 120-30=90
An obtuse triangle is a triangle that has one angle greater than 90 degrees.
A right triangle has a 90 degree angle in it. This is not to be confused with a wrong triangle, which has two 90 degree angles.
It is a right angle triangle because it has a 90 degree angle and the 3 angles add up to 180 degrees.
It is an isosceles triangle.
If one angle is a right angle, it is a right triangle. If one angle is an obtuse angle, it is an obtuse triangle. If there are no right nor obtuse angle then it is an acute triangle.
Any right angle triangle can have only one 90 degree angle within it
It will look like a right angle triangle with a 90 degree angle and two 45 degree angles and will have one line of symmetry
When a triangle has no angles =to 90 degrees, it is called an oblique triangle.When one of the angles of an oblique triangle is greater than 90 degrees, it can also be called an obtuse triangle.Technically, the triangle described would also be a type of scalene triangle, although we should only call it this when it is defined by the length of its sides, rather than by its internal angles.
Sum of all angles in a triangle is equal to 180o. If two angles are 60o then the third angle is: Third angle = 180o - (60o + 60o) = 60o. But a right triangle is one having one angle equal to 90o but in this case there is no angle equal to 90o. So there is no right triangle which has two angles equal to 60o.
SSS
Yes
Either an isosceles or a scalene triangle can have one right angle.
45°, 45°, and 90°
All triangles have 3 interior angles that add up to 180 degrees and are classified according to the size of their angles as follows:- Right angle triangle: One 90 degree angle and 2 acute angles Isosceles triangle: Two equal angles and another angle Equilateral triangle: Three equal angles each measuring 60 degees Obtuse triangle: One obtuse angle and 2 acute angles Scalene triangle: Three acute angles of different sizes
It is simply a right angle triangle but if the sides were the same then it is an isoceles right angle triangle