Two similar triangles have perimeters and respectively

MATHEMATICS · Single correct · CBSE · Mathematics · Triangles · Triangles

Problem

Two similar triangles have perimeters

4x\,\text{cm}

and

(6x + 6)\,\text{cm}

respectively. A side of the first triangle measures

9\,\text{cm}

and the corresponding side of the second triangle measures

15\,\text{cm}

. Find the value of

x

. (a)

6

(b)

3

(c)

9

(d)

12