SOLUTION: The point (2,0) is on a circle with the center(-1,4). Find the length of the radius.
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Question 91337: The point (2,0) is on a circle with the center(-1,4). Find the length of the radius.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
To find the radius, you need to find the distance between (2,0) and (-1,4)
Start with the given distance formula
where )
is the first point )
and )
is the second point )
Plug in , , ,
Evaluate to get 3. Evaluate to get -4.
Square each value
Add
So the distance between (2,0) and (-1,4) is 5 units
So that means the radius is 5 units
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