Three circles with equal radii touch each other externally .The figure formed by joining the centres of these circles is

an isosceles triangle

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an equilateral triangle

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a scalene triangle

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a right angled triangle

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Solution

The correct option is A an equilateral triangle
Let the three circles be of equal radii r. Then, the triangle formed by joining the centres of these circles is an equailateral triangle with each side 2r.

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Three circles with equal radii touch each other externally .The figure formed by joining the centres of these circles is

The correct option is A an equilateral triangleLet the three circles be of equal radii r. Then, the triangle formed by joining the centres of these circles is an equailateral triangle with each side 2r.

The correct option is A an equilateral triangle
Let the three circles be of equal radii r. Then, the triangle formed by joining the centres of these circles is an equailateral triangle with each side 2r.