Date post: | 13-Jul-2015 |
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• A four sided polygon.
• All right angles• Area: base x
height
• A four sided polygon
• All right angles• Equal sides• Area: side x
side
• A four sided polygon• Two pairs of parallel sides• Area: base x height
• Four sided polygon
• Four sides of equal lenght
• Area: (D x d) : 2
• Four sided polygon• Exactly one pair of
parallel sides, they are called bases
• Area: (B + b) x height
2
• Three sides have the same lenght
• The angles measure 60 degrees
• Two sides have the same lenght, and the other has different
• The three sides have different lenght
• It has three acute angles (less than 90 degrees)
• One of the three angles measures more than 90 degrees
•One angles is right (90 degrees)