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rosijanka [135]
3 years ago
6

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

Mathematics
1 answer:
dybincka [34]3 years ago
8 0
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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