It is a right angle triangle because it has a 90 degree angle and the 3 angles add up to 180 degrees.
There are three angles in a triangle but to measure them you would use a protractor.
If two angles of a triangle each measure 55 what is the measure of the third angle?
It is an isosceles triangle
An equilateral triangle.
An isosceles triangle has two equal angles.
72, 72, 36
The three interior angles add up to 180°. (180° is the measure of a triangle)
Two angles of a triangle add up to 65°. What is the measure of the third angle?
it is an issosolesse triangle
an equilateral triangle :)