Answer:
x=61 °
Explanation:
angle ABE=90 ° (angle in a semi circle), so angle EBD= angle ABD - angle ABE =115-90=25 °
and the angle EDB=180 - angle EDF =180-86=94 °
so in the triangle BED:
x=180-(angle EDB+ angle EBD) =180-(94+25) =61°
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