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14 Cards in this Set
- Front
- Back
adjacent angle? |
angles that join up |
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acute angle triangle |
A triangle that has all angles less than 90°
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obtuse angled triangle |
A triangle that has one angle greater than 90°
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scalene triangle |
A triangle with no equal angles |
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isosceles triangle |
Two equal angles and sides |
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equilateral triangle |
all sides are equal |
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parallelogram |
opposites are equal |
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plane shape |
2 dimensional |
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Polygon |
a plane shape with straight sides. all the sides and angles must be the same
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Irregular Polygon |
A polygon that does not have all sides equal and all angles equal.
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Alternate |
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Corresponding |
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Co Interior |
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Formula To Find Sum Of All Interior Angles Of Polygon |
n=number of sides (n-2) x 180= divide by 20 to get the size of each angle |