Use the Triangle Angle Sum Theorem to find the third angle of a triangle if the other two angles measure 63° and 40°
The Triangle Angle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.
Let's represent the third angle as x.
So we have:
63° + 40° + x = 180°
Now, let's solve for x:
103° + x = 180°
Subtracting 103° from both sides, we get:
x = 180° - 103°
x = 77°
Therefore, the third angle of the triangle measures 77°.