| A | B |
| square | The area of a _____ is the square of the length of its side. |
| congruent | If two polygons are _____, then they have the same area. |
| Area Addition Postulate | The area of a region is the sum of the areas of all its nonoverlapping parts. |
| rectangle | The area of a ____ is the product of its base and height. |
| corresponding | The area of a parallelogram is the product of a base and its ____ height. |
| triangle | The area of a ____ is half the product of a base and its corresponding height. |
| geometric probability | The area of the region considered a success divided by the area of the sample space. |
| trapezoid | The area of a _____ is half the product of the height and the sum of the bases. |
| diagonals | If the ____ of a quadrilateral are perpendicular, then the area of the quadrilateral is half the product of the lengths of the diagonals. |
| equilateral | The area of an ____ triangle is one-fourth the square of the length of the side times the square root of three. |
| regular polygon | The area of a ____ is half the product of the apothem and the perimeter. |
| circumscribed | A circle can be ____ about any regular polygon. |
| apothem | The distance between the center and a side in a regular polygon. |
| central angle | In a regular polygon, the angle whose vertex is the center and whose sides contain two consecutive vertices of the polygon. |
| pi | The ratio of the circumference of a circle to its diameter. |
| arc length | Circumference times the measure of the arc divided by 360 degrees. |
| circle | The area of a ___ is pi times the square of the radius. |
| sector | The ratio of the area of a ___ to the area of its circle is equal to the ratio of the measure of the intercepted arc to 360 degrees. |
| similar | If two polygons are ___ with corresponding sides in the ratio of a:b, then the ratio of the areas is the square of a to the square of b. |
| radii | A sector of a circle is the region bounded by two ___ and their intercepted arc. |
| segment | A circle ___ is a region bounded by a chord and its intercepted arc. |