Respuesta :

devishri1977

Answer:

Step-by-step explanation:

Ratio: 2:4:5

Sides are : 2x , 4x , 5x

Second side = 56 cm

4x = 56

x= 56/4

x = 14

2x = 2*14 = 28 cm

4x = 4*14 =  56 cm

5x = 5*14 = 70 cm

Perimeter = 28 + 56 + 70 = 154 cm