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Question

The sides of ΔABC are 6 cm, 8 cm and 10 cm. Find the perimeter of the larger ΔXYZ (in cm) which is similar to ΔABC if the ratio of corresponding sides is 2 : 1.
  1. 48

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Solution

The correct option is A 48

Let ΔXYZ be the larger triangle, similar to ΔABC.

Given, the ratio of corresponding sides is 2 : 1.

Since ratio of their corresponding sides is 2 : 1, the ratio of their perimeter will also be 2 : 1.

Perimeter of ΔABC=6+8+10=24 cm

Perimeter of ΔXYZPerimeter of ΔABC=21

Perimeter of ΔXYZ24=2

The perimeter of ΔXYZ=24×2 =48 cm


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