Answer:
Option E 15 cm
Step-by-step explanation:
we know that
The circumference of a circle subtends a central angle of 360 degrees
so
using proportion
Find out the length of arc DE by a central angle of 45 degrees
Let
x -----> the length of arc DE

Answer:
First one is DC
Second one is AB.
Step-by-step explanation:
Just did them on edge.
Answer:
he's going 77mph and then 2069 meters per hour.