mmn6162 mmn6162
  • 08-10-2018
  • Mathematics
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The perimeter of an isosceles triangle is 15.6 m. Find the lengths of its sides, if: The base is 3 m bigger than a leg.

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nap14hockey
nap14hockey nap14hockey
  • 08-10-2018

So, an isosceles triangle has 2 equal sides, we will call them x.

The base can be modeled by 3+x


So, the perimeter is equal to x + 3+x + x


So

15.6 = 3x + 3

12.6 = 3x

4.2 = x

So, the lengths of the sides are 4.2, 4.2, 7.2

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