Formulas
Definitons
Practice Problems
Miscellaneous
100

The formula for area of a triangle.

What is A=1/2bh?

100

Polygons that are both equilateral and equiangular

What is a regular polygon?

100

Sum of interior angle measures of a 15-gon.

What is 2340 degrees?

100

The sum of the interior angle measures of a convex polygon with n sides is (n-2)180.

What is the Polygon Angle Sum Theorem?

200

The formula for area of a regular polygon

What is A=1/2aP?

200

A parallelogram with 4 congruent sides

What is a rhombus?

200

d2 of a kite, when A=96 in2 and d1=16 in

What is 12 in?

200
Formula for perimeter of a regular polygon

What is P=ns?

300

The formula for area of a parallelogram

What is A=bh?

300

Any parts of diagonal containing points in the exterior of a polygon

What is concave?

300

Circumference of a circle with a diameter of 34 in rounded to the nearest tenth.

What is 106.8 in?

300

The area of a region is equal to the sum of the areas of its nonoverlapping parts.

What is Area Addition Postulate?

400

The formula for area of a rhombus or kite

What is A=1/2d1d2

400

An angle whose vertex is the center of the regular polygon and whose sides pass through consecutive vertices

What is a central angle?

400

The effect of the perimeter and area where the side length of a square is tripled.

What is the area is multiplied by 9 and the perimeter is tripled?

400

The set of all possible outcomes of an experiment.

What is sample space?

500

The formula for area of a trapezoid

What is A=1/2(b1+b2)h?

500

The perpendicular distance from the center of a regular polygon to a side of the polygon

What is the apothem?

500

The midsegment of a trapezoid is 24 and one of the bases is 13. Find the other base.

What is 35?

500

Name 2 of the 4 characteristics of an isosceles trapezoid.

What is nonparallel sides are congruent, base angles are congruent, 1 upper and 1 lower angle equal 180 degrees, and diagonals are congruent?

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