The circumferences of two circles are in the ratio 2:3. What is the ratio of their areas? 2:3 4:9 1:3 8:27 combined defence services examination solved question papers The area of a circle inscribed in an equilateral triangle is 154 sq cm. what is the perimeter of the triangle? 21 cm 42v3 cm 21v3 cm 42 cm The lengths of three line segments (in cm) are given in each of the four cases. Which one of the following cases is not suitable to be the three sides of a triangle? 2, 3, 4 2, 3, 5 2, 4, 5 3, 4, 5 In histogram the width of the bars is proportional to ___ frequency number of classes class interval None of these
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