Answer: 13.99
Step-by-step explanation:
Using sine rule
((sin 90)/18)= ((sin (180-(90+39)))/x)
((sin 90)/18)=((sin 51)/x)
(1/18)=(0.7771/x)
Cross multiply
x= 0.7771*18
x= 13.99
Answer:
It's A
Step-by-step explanation:
The area of a circle is PiR^2
We've gotten Pi left, so all we need to do is square root 196.
The square root of 196 is 14.