Multiple choice

The perimeter of a triangle is 18 cm. If the sides are in the ratio of 3 : 2 : 1, then the length of the greatest side is

  1. 6 cm

  2. 9 m

  3. 9 cm

  4. 27 m

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Perimeter of triangle = 18 cm Let, the sides of the triangles be 3x , 2x and x. Then, 3x + 2x + x = 18 Or,  6x = 18 Or , x = 3 Therefore, length of the sides are : 3x = 9 , 2x = 6 and x = 3 Hence, this option is correct.

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