Artwork of Geometry Problem 550.

Level: Mathematics Education, High School, Honors Geometry, College.

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## Monday, March 23, 2015

### Geometry Problem 550

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geometric art

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Let A, B, C, D, X be the vertices containing angles a, b, c, d, x respectively.

ReplyDeleteExtend line BC to meet L1 at E and L2 at F.

Clearly <CEX = <BF L2 = a + b.

Extend CD to meet L1 at G.

Clearly <CGX = a + b + c.

Hence x = a + b + c + d