If two angles of a triangle each measure 45 degrees, the third angle measures 90 degrees. This is because of the Triangle Sum Theorem - The sum of the measure of the interior angles of a triangle is 180 degrees. If you know that two of the angles total to be 90 degrees, you can subtract that 90 degrees from the total 180. The result is 90 degrees.
the sum ofall 3 angles of a triangle is 180 degrees. If all of them are equal, then each is 60 degrees.
Correct; sum of angles of a triangle is 180 degrees.
The sum of two complementary angles is 90 degrees. The sum of two supplementary angles is 180 degrees.
The sum of the interior angles is (102-2)*180 = 18,000 degrees.The sum of the interior angles is (102-2)*180 = 18,000 degrees.The sum of the interior angles is (102-2)*180 = 18,000 degrees.The sum of the interior angles is (102-2)*180 = 18,000 degrees.
supplementary angles.
Use the fact that the sum of the three angles is 180 degrees.Use the fact that the sum of the three angles is 180 degrees.Use the fact that the sum of the three angles is 180 degrees.Use the fact that the sum of the three angles is 180 degrees.
180 degrees
180 degrees
The sum of the internal angles is 180*(11 - 2) = 180*9 = 1620 degrees. The sum of the external angles is 360 degrees - irrespective of the number of sides.
The sum of the angles inside a triangle is 180 degrees.
∑θ∆ 180 degrees
The sum of the measures of the angles in any triangle in the plane is 180 degrees. If two angles are 15 and 85 then their sum is 100 degrees and 180-100=80 degrees
They are a supplementary pair of angles.
In a triangle, the sum of the measures of the angles is 180 degrees.
The third angle is 85 degrees. The sum of all internal angles in a triangle is always 180 degrees
The sum of the interior angles of a triangle is 180 degrees. This is because one angle of a triangle is 60 degrees.