1. The circumference of a circle is equal to the perimeter of an equilateral triangle. If the radius of the circle is 7 cm what is the length of the side of the equilateral triangle?





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  • By: anil on 05 May 2019 02.13 am
    Let side of equilateral triangle = $$a$$ cm and radius, $$r = 7$$ cm Circumference of circle = $$2pi r$$
    = $$2 imes frac{22}{7} imes 7 = 44$$ cm According to ques, circumference of circle = Perimeter of triangle => Perimeter of equilateral triangle = $$3a = 44$$ => $$a = frac{44}{3}$$ cm => Ans - (B)
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