11.3 to 11.6 Notecards
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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| Areas of Similar Polygons Theorem | if two polygons are similar with the lengths of corresponding sides in the ratio of a:b then the ratio of their areas is a^2: a^b
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| Circumference | the distance around the circle.
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| Circumference of a Circle Theorem | the circumference C of a circle is C= πd or C= 2πr, where d is the diameter of the circle and r is the radius of the circle
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| Arc Length | a portion of the circumference of a circle
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| Arc Length Corollary | in a circle, the ratio of the length of a given arc to the circumference is equal to the ratio of the measure of the arc to 360 degrees
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| Area of a Circle Theorem | the area of a circle is π times the square of the radius. A= πr^2
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| Sector of a Circle | the region bounded by two radii of the circle and their intercepted arc.
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| Area of Sector Theorem | the ratio of the area of a sector of a circle to the area of the whole circle (πr^2) is equal to the ratio of the measure of the intercepted arc to 360 degrees
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| Center of a polygon | the center of an circumscribed circle
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| Radius of a polygon | the radius of an circumscribed circle
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| Apothem of a Polygon | the distance from the center to any side of the polygon
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| Central Angle of a Regular Polygon | an angle formed by two radii drawn to consecutive vertices of the polygon. to find the measure of each central angle divide 360 by the number of sides
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| Area of a Regular Polygon Theorem | the area of a regular n-gon with side length s is one half the product of the apothem (a) and the perimeter (P).
A= 1/2aP or A=1/2a x ns
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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