Question

9. Each side of a triangle is increased by 10 cm
If the ratio of the perimeters of the new triangle
and the given triangle is 5: 4, find the perimeter
of the given triangle.​

Answer 1

Answer:

120cm

Step-by-step explanation:

let the sides of the original triangle be x, y and z

let the sides of the new triangle be x+10, y+10 and z+10

x+10+y+10+z+10/x+y+z= 5/4

4(x+y+z+30) = 5(x+y+z)

4x+4y+4z+120 cm= 5x+5y+5z

x+y+z= 120cm

Answer 2

Step-by-step explanation:

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