Out of 2 equilateral triangle the side of the first triangle is 3 cms. More than that of the second. The ratio of the perimeter of both the triangle is 5:2 then find out the side of the triangles
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Answer the side of first triangle is 3cm (being an equilateral triangle ) all sides are equal hence perimeter = 9 cm (perimeter of triangle =sum of all sides) let ratio given =5x and 3x. so 5x =9cm so x =9/5 cm then perimeter of other triangle =2*9/5=19/5 so side of other angle =19/15 =1.26666
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