Question

if the perimeter of a triangle POR is 40 cm and the ratio of its sides is 1 : 3 : 4 find the sides of the triangle ​

Answer 1

Answer:

X+3x+4x=40

8x=40

X=5

sides of triangle are 5,15,20

Answer 2

Step-by-step explanation:

let the sides be 1x, 3x, 4x

let the ABC be the triangle

perimeter of triangle = sum of all sides= AB+BC+ CA

perimeter of triangle = 1x + 3x + 4x

perimeter is given = 40

8x = 40

x = 40/8

x=5

Hence, the sides of the triangle are -:

1x = 1×5 = 5cm

3x = 3×5 = 15cm

4x = 4×5 = 20cm