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maria [59]
3 years ago
7

Work out the value of x

Mathematics
1 answer:
zalisa [80]3 years ago
3 0

Answer:

x = 67.5°

Step-by-step explanation:

A circle's angles add up to 360°

So,

x+3x+90 = 360

4x+90 = 360

4x = 360-90

4x = 270

Dividing both sides by 4

x = 67.5°

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