umarhaley
27.05.2021 •
Mathematics
Urgent! Help please!
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Ответ:
arc EF = 45°
Step-by-step explanation:
Since EB is a diameter then the angle at the centre subtended by arc EF is
180° - 135° = 45°
The arc subtending a central angle is equal in measure to the central angle
Thus arc EF = 45°