One acute angle of a right triangle is 16 degrees smaller than the other. Find the larger acute angle of this triangle.
March 23, 2021 | education
| The angles in any triangle add up to 180 °. We know that the triangle is rectangular, so one of the angles is 90 °.
Let us express the smaller unknown acute angle in terms of x °;
Then: (x + 16) ° is the larger unknown acute angle;
Let’s compose and solve the equation of the sum of angles in a triangle:
x ° + (x + 16) ° + 90 ° = 180 °;
x + x + 16 + 90 = 180;
2x + 16 + 90 = 180;
2 x + 106 = 180;
2x = 180 – 106;
2x = 74;
x = 74/2;
x = 37 ° – smaller acute angle;
x + 16 ° = 37 ° + 16 ° = 53 ° – greater acute angle.
Answer: 53 °
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