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December 19, 2014

December 19, 2014

Posted by **Lissa** on Wednesday, September 21, 2011 at 11:40am.

- Geometry -
**Reiny**, Wednesday, September 21, 2011 at 11:43amthe sum of the 4 angles is 360°

But they come in equal pairs.

let the larger be 3x and the smaller be 2x

3x + 2x = 180

x = 36

so the angles are 72° and 108°

check: 72:108 = 2:3

72+72+108+108 = 360

- Geometry -
**Lissa**, Wednesday, September 21, 2011 at 11:59amthank you reiny

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