alleryTwo angles of a triangle are 50 degrees and 60 degrees. What is the third?
A110 degrees
B70 degrees
C80 degrees
D130 degrees
Answer & Solution
Correct answer: B. 70 degrees
1. The three angles of a triangle add up to 180 degrees.
2. 50 + 60 = 110 degrees.
3. Third angle = 180 - 110 = 70 degrees.
4. The value 130 comes from subtracting only 50, and 110 is the sum of the two given angles.
_Source: Wikipedia, Triangle (CC BY-SA 4.0), Triangle_
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