Answer:
39.25
Step-by-step explanation:
Area of circle is pi(3.14) times r^2.
Semi means half
So 3.14 times 5^2 = 78.5
Its a semi ciricle so its 78.5/2 which is 39.25
1 multiplied by 25 and 5 multiplied by 5
Answer:
EcD= 52 DCB=128
Step-by-step explanation:
First, let's find out what x equals and what (x+11) equals

And therefore...

Now angle ecd is a vertical angle we just found.
So angle ECD= 52 degrees
And agles ECD and DCD and supplimntary
