An equilateral triangle is inscribed in a circle, each side measuring 15 cm . What is the radious of this circle?
ক. [গণিত]
খ. [গণিত]
গ. [গণিত]
ঘ. 15
উত্তর: [গণিত]
ব্যাখ্যা: Side of the triangle [গণিত] So, height of the equilateral triangle [গণিত] Now. Medians [গণিত] heights of the triangle divided in the ratio [গণিত] at the centroid. So, Radius of the circumcircle [গণিত] height of the triangle. So radius of the circumcircle [গণিত] .
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