In triangle ABC, angle A is 40̊ greater than angle B, and angle C is less than angle A by 20̊, then angle B will be equal to …
| September 2, 2021 | education
Let the angle ABC of the triangle be equal to X0, then, by condition, the angle BAC = (X + 40) 0, and the angle ACB = (X + 40 – 20) 0.
The sum of the interior angles of the triangle is 180, then X + (X + 40) + (X + 40 – 20) = 3 * X + 60.
3 * X = 180 – 60 = 120.
X = ABC = 120/3 = 40.
Answer: The angle of the VABS is 40.
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