DulEc2harloggmonsen DulEc2harloggmonsen
  • 22-11-2016
  • Mathematics
contestada

The lengths of the sides of a triangle are 3x, 5x – 12, and x + 20. Find the value of x so that the triangle is isosceles. ...?

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Аноним Аноним
  • 24-11-2016
The solution to the problem is as follows:

Any two side are equal in isoscles triangle 

5x-12=x+20 
4x=32

x=8 
5x-12=28
x+20=28 
5x=40 
28,28,40

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