To find the measure of the third angle, we can use the Triangle Angle Sum Theorem, which states that the sum of the angles in a triangle is always 180 degrees.
Let's call the measure of the third angle x.
According to the Triangle Angle Sum Theorem, we can set up the following equation:
63° + 40° + x = 180°
Simplifying the equation, we have:
103° + x = 180°
Now, we can solve for x by subtracting 103° from both sides of the equation:
x = 180° - 103°
x = 77°
Therefore, the measure of the third angle is 77°.
Use the Triangle Angle Sum Theorem to find the measure of the third angle if the first and second angle measure 63°
and 40°
.(1 point)
°
1 answer