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25-03-2018
Mathematics

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Just Q9 please x If u could help that would be great

Just Q9 please x If u could help that would be great class=

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25-03-2018

General rule: The angles on a straight line total 180°

The right angle equates to 90°

Since that angle is half of our desired angle, it must mean that 2x + x = 90°

breaking this down, we get 3x = 90° which can be divided to make x = 30°

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