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Alecsey [184]
3 years ago
6

The ratio of the side lengths of a triangle is 3:4:5, and it’s perimeter is 72cm . What is the length of the longest side of the

triangle?
Mathematics
2 answers:
mash [69]3 years ago
7 0

let; sides be 3x, 4x and 5x.

according to the question,

perimeter=72 cm

now,

perimeter=sum of each sides

72=3x +4x + 5x

72=12x

x=72 / 12

x=6 cm

then,

longest side of triangle= 5x

5x=5*6

=30 cm.

Rudiy273 years ago
6 0
  • Let the sides be 3x, 4x and 5x.
  • Therefore, 3x + 4x + 5x = 72
  • or, 12x = 72
  • or, x = 6
  • So, the length of the longest side of the triangle = (5 × 6) cm = 30 cm.

<u>Answer</u><u>:</u>

<u>3</u><u>0</u><u> </u><u>cm</u>

Hope you could understand.

If you have any query, feel free to ask.

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