Question

Question
The perimeter of two similar triangles are 81 cm and
63 cm respectively. If one side of the first triangle be
18 cm, then the corresponding side of the smaller
triangle is ___ cm long​

Answer 1

Step-by-step explanation:

Since we know that the ratio of perimeters of two similar triangles is the ratio of two of its corresponding sides, thus,

63

81

=

x

18

x=unknown side=14cm.

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Answer 2

Answer:

Perimeter of two similar triangles are 81 cm and 63 cm.

One side of the first triangle be 18cm.

81:63 cm :: x:18cm

x= 63×18 / 81

x=1134/ 81

x= 14 cm

Step-by-step explanation:

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