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Browse Elementary Triangles and Other Polygons
Stars indicate particularly interesting answers or
good places to begin browsing.
 Quadrilateral Classification: Definition of a Trapezoid [01/15/1997]

What is the correct definition of a trapezoid, and why?
 Quadrilaterals [8/31/1995]

What is 4sided and has no equal angles?
 Rectangles and Areas [09/30/1998]

How do you find the area of a square or rectangle? What if the shape
looks like several rectangles put together?
 Regular Decagon [03/25/2002]

Can you show me a picture of a regular decagon?
 Teaching Area of Triangles [9/15/1996]

When I gave a Unit Assessment, all but one student got area of a triangle
wrong. Where did I fail?
 Triangles with Specific Lengths and Angles [3/24/1996]

My base is 32 inches and my angle can not exceed 35 degrees. How long
will my sides be and what is the inside angle?
 Types of Triangles [02/24/2003]

What is the the difference between equilateral, isosceles, and
scalene triangles? How can I remember which name goes with which
triangle?
 Using a Parallelogram to find the Area of a Triangle [06/26/2001]

What is the area of a triangle with a height of 12 inches and a base of 3
inches?
 Using a Protractor [06/28/1998]

How do you construct two parallel lines and intersect them making a
65degree angle?
 What is a Vertex? [12/06/2001]

And what does vertices mean?
 What is Circumference? [06/25/2001]

My friend told me it's somewhat like the measurement of the outside of a
circle, but I don't understand that.
 What is Length in a Rectangle? [05/31/1999]

Is the length of a rectangle the longest side, whether vertical or
horizontal?
 What is the Largest Sided Polygon? [4/12/1995]

What is the largest sided polygon?
 What is the Plural of Rhombus? [4/7/1995]

Hi! Say, what exactly is the plural of "rhombus?" We aren't sure if it is
"rhombi" or "rhombuses".
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