jose4689
jose4689 jose4689
  • 19-01-2018
  • Mathematics
contestada

Can someone explain how to do number 3

Can someone explain how to do number 3 class=

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AnimeArtistLife
AnimeArtistLife AnimeArtistLife
  • 19-01-2018
The sum of a triangle is 180. 

Set it up like this: 2k + k = 45.

Simplify: 3k = 45

Divide by 3 on both sides. 

k = 15.

So 2k = 30.
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