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avatar+1288 

A circle passes through the point $A,$ and is tangent to the $y$-axis at the point $B,$ as shown. Find the radius of the circle.

 

In the diagram, A = (1,0) and B = (0,1).

 Feb 26, 2024
 #1
avatar+1622 
+1

If you construct a unit circle at a point, say (1,1), you will see that it satisfies the given constructions. 

The radius of a unit circle is just 1 unit.

 Feb 26, 2024

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