Because the formula for the interior degrees of a polygon is (number of sides -2)*180 = sum of interior angles.
A triangle has 3 sides so: (3 -2)*180 = 180 degrees
180 degrees
180 degrees all triangles have 180 degrees
180 degrees.
Triangles whether acute, obtuse, equilateral or scalene will only ever have angles that add to 180 degrees.
180 degrees all triangles have 180 degrees.(the above assumes Euclidean - flat - space. In Hyperbolic space there are less than 180° in all triangles; in Spherical space more than 180° in all triangles)
all triangles have 180 degrees even isosceles
A hexagon has 6 triangles inside of it. If one triangle equals 180 degrees and there are 6 triangles. 180 degrees *6 triangles=1080 degrees.
All triangles have to be 180 degrees so an isoceles is 180 degrees
3 triangles because there are 540 degrees in a pentagon and 180 degrees in a triangle so 3*180 = 540 degrees
180 degrees... all triangles equal 180.
6 because there are 1080 degrees in an octagon and 180 degrees in a triangle so 1080/180 = 6 triangles
The answer is still 180 degrees as all triangles are 180 degrees. Its a rule