The first angle of the triangle is 40 degrees, and the second is 16 degrees greater than the third. Find the corners of this triangle.
December 3, 2020 | education
| By the theorem, the sum of all the angles of a triangle is 180 degrees.
180-40 = 140 degrees – angle 2 + angle 3
we denote the angle 2 for x, then the angle 3 = x + 16, make up the equation: x + 16 + x = 140,
2x = 124,
x = 62,
x + 16 = 62 + 16 = 78
Answer: angle 1 = 40 degrees, angle 2 = 62 degrees, angle 3 = 78 degrees
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