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The three equal circles touch each other externally. If the centres of these circles be A, B, C then ABC is
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- a right angle triangle
- an equilateral triangle
- an isosceles triangle
- a scalene triangle
- a right angle triangle
Correct Option: B
According to question , we draw a figure of three equal circles touch each other externally with centres A , B and C 
Radius of each circle = r units
∴ AB = BC = CA = 2r units
Hence, ABC is an equilateral triangle.
