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Recap
Acute, Right and Obtuse Angles
How to use a protractor
You can also learn how to draw an angle with a protractor from these site:
http://www.mathopenref.com/constdrawangle.html
http://www.mathsisfun.com/geometry/protractor-using.html
Parallel and Perpendicular Lines
Famous Paintings of Rectangles and Squares that are worth millions
Piet Mondrian painting
Piet Mondrian painting
Canvas Painted Blue with a White Line sold on May 14, 2013 at a Sotheby's auction for a record-setting 43.8 million dollars. By abstract expressionist painter Barnett Newman
Canvas Painted Blue with a White Line sold on May 14, 2013 at a Sotheby's auction for a record-setting 43.8 million dollars. By abstract expressionist painter Barnett Newman
Frank Stella Untitled 1967, magnificent Concentric Square Painting sold for $2 million
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