By trigonometric functions we find that the measure of angle A is approximately 0.12π radians.
How to determine the missing angle in a right triangle
In this question we have a right triangle, of which the length of two sides are known (AB, BC). We can know the measure of angle A by trigonometric functions:
[tex]\tan A = \frac{BC}{AC}[/tex]
[tex]\tan A = \frac{2}{5}[/tex]
A ≈ 0.12π radians
To learn more on trigonometric functions: https://brainly.com/question/6904750
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