Answer:
28° (28 degrees)
Step-by-step explanation:
Part 1
A circle is 360°. To solve what a half of a circle is, you divide 360 by 2 which is 180°.
Part 2
Since angle EFD is 152°, you know that half of a circle is 180° so 180-152=28°.
Therefore, angle CFE is 28°.