Assuming the third angle is x...
180 = 15 +85 + x
180 = 100 +x
80 = x
The third angle is 80 degrees
90o
96˚all angles to a triangle equals 180˚
30
The third angle is 75 degrees. The 3 angles of a triangle add up to 180 degrees. Therefore: 45 + 60 + 75 = 180.
The other acute angle in that triangle is 40 degrees.
If two angles of a triangle each measure 55 what is the measure of the third angle?
Two angles of a triangle add up to 65°. What is the measure of the third angle?
The sum of two complementary angles is 90 degrees. The three angles of a triangle add up to 180 degrees. Hence, if you subtract the complementary angles from 180, you have the measure of the third angle: 180 - 90 = 90 (this is the third angle) As a rule, if two angles of a triangle are complementary, the third angle is a right angle (90 deg). The three angles together form a right triangle.
The third angle is 85 degrees. The sum of all internal angles in a triangle is always 180 degrees
180- total of the first two angles= 3rd angle
The third angle of a triangle is equal to 180 degrees minus (the sum of the first two angles).
The missing angle measure is 100 degrees.
90o
The sum of the angles is 180 degrees in any triangle. So 180-140 is 40 and the third angle is 40 degrees.
63
...a right triangle.
96˚all angles to a triangle equals 180˚