# In a triangle, 2 angles are equal to 54 degrees and 58 degrees find its 3 angle?

March 28, 2021 | education

| 1. Let us determine the total degree measure of the two initially known angles:

54 + 58 = 112 °.

2. Determine the third angle of the triangle using the property of the triangle, which is that the sum of the angles of the triangle is 180 °:

180 – 112 = 68 °.

The solution to the problem could be written using one action:

180 – (54 + 58) = 68 °.

Answer: The third angle is 68 °.

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