One of the acute angles of a right-angled triangle is 32 ° smaller than the other, find the smaller angle of the triangle.
August 4, 2021 | education
| It is known from the condition that one of the acute angles of a right-angled triangle is 32 ° less than the other. In order to find the smaller angle of the triangle, we will compose and solve a linear equation.
Let us denote by the variable x the degree measure of one of the acute angles, then the second acute angle can be written as (x – 32).
The angles of a triangle add up to 180 °. Based on this, we will compose and solve the equation.
x + x – 32 + 90 = 180;
2x = 180 + 32 – 90;
2x = 122;
x = 122: 2;
x = 61 ° – greater acute angle of the triangle;
61 – 32 = 29 ° is the smaller acute angle of the triangle.
Answer: 29 °.
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