The sum of all three internal angles is 180 degrees so, if two of them are 40 degrees each the third must be ...
80 degrees
96 degrees
The three angles always add to 180, so the third angle would be 40 degrees.
If you mean the equal angles were each 70o then 180 - 140 ie 40o
60 degrees
If two angles of a triangle each measure 55 what is the measure of the third angle?
180- total of the first two angles= 3rd angle
80 degrees
90 degrees
The sum of the angles is 180 degrees in any triangle. So 180-140 is 40 and the third angle is 40 degrees.
96 degrees
The three angles always add to 180, so the third angle would be 40 degrees.
110180 - (2 x 35) = 110
90 degrees
55Improved Answer:-It is: 180-54-54 = 72 degrees
If you mean the equal angles were each 70o then 180 - 140 ie 40o
Let the measure of the first angle be x⁰. So that the second angle would be (x + 21)⁰, and the third one would be (x - 15)⁰.Since the sum of angle measures in a triangle is 180⁰ we have:x + x + 21 + x - 15 = 1803x = 174x = 58Thus, the first angle is 58⁰, the second angle is 79⁰, and the third angle is 43⁰.