Ask Question
21 September, 05:43

If two angles in a triangle add up to138, then what is the size of the third angle

+4
Answers (1)
  1. 21 September, 06:42
    0
    42 degrees

    Step-by-step explanation:

    The three angles of any triangle always add up to 180 degrees.

    Thus, since we already know 2 angles which add up to 138 degrees, we just need to subtract the two angles we already know from 180 degrees for the third angle.

    180-138=42 degrees.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “If two angles in a triangle add up to138, then what is the size of the third angle ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers