The square root of 361=19
Okay so
16:4 is your starting ratio. Start by finding your GCF, which for this set, is 4.
Divide both sides by 4.
This gives you 4:1 (4 squares to 1 circle)
Hope this helps!
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Answer:
I guess this is the answer hope it helps
The answer is 
Step-by-step explanation:
Given that
and 
To find : 
Now, assign the value
in 

Also, assign the value
in 

Now, adding the like terms , we get,

Thus, the value of
is 