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January 27, 2015

January 27, 2015

Posted by **Kate** on Saturday, September 7, 2013 at 12:02am.

- Algebra, HELP! PLEASE! -
**Graham**, Saturday, September 7, 2013 at 12:44amThe sum of the angles of a triangle is 180°.

Use:

A + B + C = 180°

where B = 4A and C = A+12°

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