If two circles have one point of intersection and the same radius, how many external tangents can be drawn?
Show answer & explanation
Correct answer: B
Explanation
Given:
Two circles have the same radius.
Both circles intersect (touch) at a point.
The number of externally common tangents to the circles = 2.
When two circles of equal radius touch at a point, only externally common tangents are possible.
Hence, the number of external tangents = 2.