Respuesta :

Answer:

45 degrees

Step-by-step explanation:

A full circle is comprised of 360 degrees, so 360-315=45 degrees.

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Answer:

b =45

Step-by-step explanation:

A full circle is 360 degrees

b+315 = 360

Subtract 315 from each side

b+315-315 = 360-315

b =45

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