Question

(v)
The perimeter of two similar triangles are
20 cm and 16 cm respectively. If the length of
one side of the first triangle is 9 cm, then find
the length of the corresponding side of second
triangle.​

Answer 1

Answer:

Let, side of second triangle be x

In similar triangles,

ratios of perimeters=ratios of lengths of sides-(1)

ratio of perimeter=20:16=5:4-(2)

ratio of lengths of sides=9:×-(3)

from (1) (2) (3)

5:4=9:×

5/4=9/×

5x=36

×=36/5

×=7.2