Question

Each side of triangle is increased by 10 cm. If the ratio of the perimeter of the new triangle is 5:4, Find the perimeter of given triangle.​

Answer 1

Answer:

120 cm

Step-by-step explanation:

let perimeter of given triangle = x

if each side is increased by 10 then perimeter of the new triangle = x+3×10 = x+30

given,

(x+30)/x = 5/4

=> 4(x+30) = 5x

=> 4x + 120 = 5x

=> 5x - 4x = 120

=> x = 120 cm

Answer 2

Answer:

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