210 (idk maybe since I think this is multiplication)
Answer:
c
Step-by-step explanation:
Answer:
-5/6
Step-by-step explanation:
Answer:

Step-by-step explanation:
step 1
Find the radius of the circle
we know that
The circumference of a circle is equal to

we have


substitute the values



step 2
Find the area of the circle
The area of the circle is equal to

substitute the values

