The two acute corners of a right-angled triangle are 3: 6. Find the largest of the corners.
May 31, 2021 | education
| Let’s denote by x the value of the smaller acute angle of this right-angled triangle.
According to the condition of the problem, the values of the two acute angles of this right-angled triangle are related as 3: 6, which is 1: 2, therefore, one of the acute angles of this right-angled triangle is 2 times larger than the other, and the magnitude of the larger acute angle of this right-angled triangle is 2x.
Since the sum of all the angles of any triangle is 180 °, we can write the following equation:
90 + x + 2x = 180.
Solving this equation, we get:
90 + 3x = 180;
3x = 180 – 90;
3x = 90;
x = 90/3;
x = 30 °.
Find the second acute angle:
2x = 2 * 30 = 60 °.
Answer: the larger acute angle is 60 °.
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