An equilateral triangle of side 9cm is inscribed in a circle.The radius of the circle is?
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Perimeter of the triangle = 3×9=18cm
It means the perimeter of triangle and circle is equal.
18= 2×22/7×r
2.86 cm is radius approx.
It means the perimeter of triangle and circle is equal.
18= 2×22/7×r
2.86 cm is radius approx.
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