The distance from the circle's center to the edge of the circle. This distance is half of the diameter

The distance across a circle through the center of a circle. This distance is twice the radius.

The distance around the edge of a circle. Calculated by the product of pi and the circle's diameter

The space inside a circle and it is calculated by the product of pi and the radius squared

The space inside a parallelogram

The area of a trapezoid

a ratio comparing a number to 100

two equal ratios

a ratio with a denominator of 1, example: 50 miles per 1 hour

a ratio showing the cost of one item, example: $2.50 per 1 gallon of gas

not equal.....EXAMPLES: less than, greater than, less than or equal to, greater than or equal to

calculated by multiplying the cost of an item by the tax rate *tax is always calculated AFTER discounts and markups have been applied to the cost

an amount of money you save when purchasing an item

calculated by multiplying the cost of an item by the percent discount

the amount of money you pay for a service

calculated by multiplying the cost of a meal or service by the percent of gratuity

the amount of money one earns after a sale, example: a realtor sells a house for 150,000 and earns 5% commission

a percentage of a sale that a salesperson makes

the increase in cost of an item

a percent increase in price usually to make a profit

calculated by dividing the amount change by the original amount

the amount of interest earned on money invested

the sum of the areas of the six rectangles

the sum of the areas of the two congruent triangles and 3 rectangles

the product of the length, width and height

one-third of the product of the area of the base and height

one half of the product of the base and height

the distance around an object

calculated by the sum of the sides an object

the average of a set of data

calculated by finding the sum and dividing by the number of items

the middle of a set of data

put data in order least to greatest and find the middle number

the number that occurs the most times in a set of data

the difference in the highest and lowest value in a set of data

the difference in the upper quartile and lower quartile

the median of the upper half of date once in order least to greatest

the median of the lower half of date once in order least to greatest

the highest number in a set of data

the lowest number in a set of data

An angle with a measure greater than 0° and less than 90°.

if the sum of two angles measures is 90°.

A triangle having one right angle (90°).

two angles whose measures have a sum of 180 degrees

An angle that measures more than 90 degrees but less than 180 degrees

Angles that have a common side and a common vertex (corner point).

A pair of opposite congruent angles formed by intersecting lines

The sum of the lengths of any two sides of a triangle is greater than the length of the third side.