smithraylen smithraylen
  • 20-06-2017
  • Mathematics
contestada

A triangle has side lengths measuring 20cm, 5cm, and n cm. Which describes the possible values of n?

Respuesta :

irspow
irspow irspow
  • 20-06-2017
The sum of any two sides must be greater than the third side.

So if n is the largest side:

n<20+5

n<25

And if 20 is the largest side:

n+5>20  subtract 5 from both sides

n>15

Since n>15 and n<25

15<n<25  or in interval notation:

n=(15, 25)
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