Question

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Answer 1

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Given that:
Angle = x
Its complement = y

We know that:
Sum of an angle and its complement is 90°.
So,
$x +y=90° \\ y = 90°-x$

Now, if
$4(90° - x) = 2(90°) - 10° \\ \\ 360° - 4x = 170° \\ - 4x =170° - 360° = 190° \\ 4x = 190° \\ x = \frac{190°}{4} \\ x = 47.5°$

The angle = x = 47.5°

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