In triangle ABC, the outside angle at vertex B is 148 degrees and the BAC angle is 58 degrees. Find the angle ACB.
March 28, 2021 | education
| The angle ABC is adjacent to the angle CBD, the sum of which is 180, then the angle ABC = (180 – 148) = 32.
The sum of the inner angles of the triangle is 180, then the angle ACB = (180 – 58 – 32) = 90.
Answer: The angle ACB is 90.
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