The sides of a triangle are in the ratio 12: 14 : 25 and its perimeter

1.	The sides of a triangle are in the ratio 12: 14 : 25 and its perimeter is 25.5 cm. The largest side of the triangle is (a) 7 cm (b) 14 cm (c) 12.5 cm (d) 18 cm
Answer» (c) 12.5 cm Let the sides of the triangle be 12x cm , 14x cm and 25x cm Thus, we have Perimeter = 12x +14x + 25x = 25.5 = 51x x = 25.5/51 = 0.5 Greatest side of the triangle = 25x = 25 x 0.5 = 12.5 cm

The sides of a triangle are in the ratio 12: 14 : 25 and its perimeter is 25.5 cm. The largest side of the triangle is (a) 7 cm (b) 14 cm (c) 12.5 cm (d) 18 cm

Answer»

Let the sides of the triangle be 12x cm , 14x cm and 25x cm

Thus, we have Perimeter = 12x +14x + 25x

= 25.5 = 51x

x = 25.5/51 = 0.5

Greatest side of the triangle = 25x = 25 x 0.5 = 12.5 cm