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Problem 1169: Complete Quadrilateral. Apps; Spark Post

Details: https://t.co/fj8xo6EjHO

0 3
2016-06-04

Hair geometry is by far the hardest for me

5 88
2016-05-22

Problem 297: Secant, Radius, Perpendicular

View on web: https://t.co/gZXlHQzMsE

0 0
2016-05-20

1 artist, 1 rhino, some high school geometry &a whole lot of masking tape!

4 13
2016-05-17