# Geometry

### By Matthew and Abby

## Angles and Shapes

Acute angle-An angle whose measure is between 0 degrees and 90 degrees.

Obtuse angle-An angle greater than 90 degrees but less than 180 degrees.

Straight angle-An angle of 180 degrees.

Right Angle-An angle of 90 degrees.

Quadrilateral-A four-sided figure having four straight sides.

Square- A plane figure with four equal straight sides and four right angles.

Rectangle- A plane figure with four straight sides and four right angles.

Rhombus- A 4-sided flat shape with straight sides where all sides have equal length.

Trapezoid- A quadrilateral with only one pair of parallel side.

Parallelogram- A four-sided plane rectilinear figure with opposite sides parallel.

**Check Out these websites!!**

**Mostly Games!**

http://www.coolmath-games.com/0-poolgeometry/

http://www.classbraingames.com/2009/12/banana-angl...

http://bowsite.com/bowsite/features/articles/deer/...

http://www.hqprimary.co.uk/gorilla/gorilla.swf

Thanks to

http://www.google.com/webhp?tab=ww&ei=O97eUp_4Os7k...

http://dictionary.reference.com/

**Small Slide show of Angles & Shapes!!**