Answer:
Arc CDE and arc EAC.
Step-by-step explanation:
Semicircles are exactly one-half of a circle and are always equal to 180 degrees. Since line CE is a horizontal line, measuring 180 degrees, 2 semicircles can be arcs CDE and EAC because they equal half of the circle.
I hope this helps!
Answer:
Step-by-step explanation:

21+4(32-5)=448
I think it’s 448
Answer:
1.01789228E-5
Step-by-step explanation:
hope this helped :)