A common external tangent is drawn on two circles, each of radius r units. The length of the common tangent is 2r units. The distance between the centres of the circles is ________ units.
Subject: Mathematics | Topic: Trigonometry | Difficulty: MEDIUM
Options
- (A) r
- (B) 4r
- (C) 3r
- (D) 2r
Verified Answer
Option (D): 2r
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