the sides of a triangle are in the ratio 5 : 12 : 13 and its perimeter is 300 m , its area is ?
5 x + 12 x + 13 x = 300 = > x = 10 a = 50 , b = 120 , c = 130 s = ( 50 + 120 + 130 ) / 2 = 150 3000 sq m answer : a
multiply(300, divide(300, add(add(5, 12), 13)))