Different equations for geaometry
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| (n-2)180 | sum of interior angles
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| (n-2)180/n | each interior angle of a regular polygon
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| 360 | sum of exterior angles
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| 360/n | each exterior angle regular polygon
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| Side length of poly1/Side length of poly2 | Similar ratio or scale factor via sides
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| Perimeter of Poly1/Perimeter of poly2 | Similar ratio or scale factor via perimeter
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| Area of poly1/Area of poly2 a^2/b^2 | Similar ratio or scale factor via area
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| A= 1/4 (squareroot of 35) ^2 | Area of triangle
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| A= 1/2 aP | Area of Polygon
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| 2(pie)r | Circumference
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| (pie)r^2 | Area of a circle
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| Arc length/2(pie)r = arc measure (degrees)/360 | measure of sector
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| area sector/(pie)r^2 = arc measure/360 | measure of circumference
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