The sum of the internal angles of any triangle is 180 degrees. Any rectangle has four 90 degree internal angles, totalling 360 degrees.
Sum of angles is 180, not 90
...a right triangle.
The sum of the three interior angles in any triangle, no matter what size, shape,or special category the triangle is, is always exactly 180 degrees.The three interior angles in every triangle add up to the same total as the threeinterior angles in every other triangle do.
The sum of any two angles - whether one of them is a right angle or not - must be less than 180 degrees, since the sum of all three angles is 180 degrees.the sum of the measures of any two non-right angles in a right triangle equals 90 degrees.
The shape is a triangle.
In a triangle, the sum of the measures of the angles is 180 degrees.
Triangle, since the sum of its angles is 180. The sum of the angles of the square, rectangle, and rhombus are all 360.
triangle sum conjecture is the sum of the measures of the angles in every triangle is 180 degrees
180 degrees
180 degrees
the sum of the triangle is 13.5
Well, since each angle of a rectangle is 90 degrees, and a rectangle has 4 angles, a rectangle's interior angles added together is 360.
The 3 inside angles of any triangle add up to 180 degrees.
The sum of the three interior angles of a triangle always total 180 degrees.
The sum of the 3 angles in any triangle always add up to 180 degrees
Sum of angles is 180, not 90
The sum of the angles should equal 180