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in an isosceles triangle each of the two equal sides is 3 cm more than twice the base if the perimeter of the triangle is 31 cm find the sides of the triangle |
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Answer» Answer: let the BASE of the triangle be x And two equal sides are 2x+3 and 2x+3 perimeter of triangle= 31 cm (2x+3)+(2x+3)+x=31 2x+3+2x+3+x= 31 5x+6= 31 5x= 31-6 5x= 25 x= 5 cm Therefore,base= 5 cm two equal sides are=2x+3 =2×5cm+3=13 cm |
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