Answer:
15°
Explanation:
Angle ABD is a right angle.
The two angles should add up to 90
x + 75 = 90
x = 15
15 degrees
Since ABD is a right angle it equals 90 degrees
ABC is 75 degrees
ABC + CBD = ABD
75 + CDB = 90
Subtract 75 from each side
75-75 + CDB = 90-75
CDB = 15
The other angle is 15 degrees
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