anonymous
  • anonymous
Geometry Help please I can't figure how to get the missing sides, AC and DF. I need to find the perimeter, but I don't understand how to. Could someone explain how I get the missing sides?
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
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anonymous
  • anonymous
The triangles are similar divide the sides of ABC by 4 to get the sides of DEF. Also, they are isosceles so AB = AC and DE = DF
anonymous
  • anonymous
I mean I get that that's how I would potentially get all of the sides and that AC = DF, but I'm not given a side length for either of those. I can figure out the other side lengths by multiplying/ dividing, just not that one. Is there a way to get that side that I'm just not remembering right now?

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anonymous
  • anonymous
you have AB = 49. that means AC = 49. Divide 49/4 to get DF and DE. You also have EF = 7.5. Multiply 7.5*4 to get BC.

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