# 6th Grade Honors Math Final Exam 2011 MPCDS Country Day

## 73 terms · Sixth Grade Honors Math Exam Vocabulary MPCDS Country Day

### prime

a number that has no factor but itself and 1

### composite

a number that has two or more factors

### GCF

The greatest whole number that is a factor of two or more nonzero whole numbers

### LCM

the smallest multiple that is exactly divisible by every member of a set of numbers

### Prime Factorization

A way of expressing a whole number as a product of its prime factors.

### Terminating Decimal

A decimal whose digits end.

### Repeating Decimal

A decimal whose decimal digits eventually repeat in the same pattern.

### Ratio

A comparison of two numbers by division

### Rate

A ratio of two quantities measured in different units.

### Unit Rate

a rate that has a denominator of 1

### Percent

A ratio whose denominator is 100

### Interest

The amount earned or paid for the use of money.

### Balance

The sum of the interest and the principal.

### Principal

An amount of money that is deposited or borrowed.

### Square Root

a number that when multiplied by itself equals a given number

### Perfect Square

A number that is a square of an integer

a symbol to indicate the square root of a number

A=s^2

A=bh

A=lw

A= 1/2 bh

1/2 h (b1 + b2)

pi r^2

a closed shape

### Triangle

a three-sided polygon

### Equilateral Triangle

a triangle with three equal sides

### Isosceles Triangle

a triangle with two equal sides

### Scalene Triangle

a triangle having three sides of different lengths

### Acute Triangle

a triangle whose interior angles are all acute

### Obtuse Triangle

a triangle with one obtuse angle

### Square

a shape with four equal sides and four equal angles

### Rectangle

a parallelogram with four right angles

### Rhombus

a parallelogram with four equal sides

### Parallelogram

a quadrilateral whose opposite sides are both parallel and equal in length

### Trapezoid

a quadrilateral with two parallel sides

a four-sided polygon

### Pentagon

a five-sided polygon

### Hexagon

a six-sided polygon

### Octagon

an eight-sided polygon

rise over run

### Coordinate Plane

A two-dimensional region determined by a pair of axes and that uses numerical values to represent the location of an object.

### Y-Intercept

where the line crosses the y axis

### Horizontal

Left to right; west to east

### Vertical

Top to bottom; north to south

### Positive Slope

rises from left to right, mountain

### Negative Slope

A line that goes up to the left, slide

### Y=mx+b

slope intercept form

∏d or 2∏r

### Fibonacci Sequence

the infinite sequence of numbers(1,1,2,3,5,8,13,...);starting with the third terms, each number is the sum of the two previous numbers

1.618 : 1

### Transformations

movements of geometric figures

### Rotation

a single complete turn

### Reflection

A transformation that flips a figure over a reflection line

### Translation

A transformation that slides each point of a figure the same distance in the same direction.

### Convex

curving or bulging outward, not making a cave

### Concave

curving inward, making a cave

### Regular Polygon

A polygon with all sides equal in length and all angles equal in measure

### Similar Polygons

Polygons that have the same shape, but not necessarily the same size

### Congruent

Same shape, same size

### Line of symmetry

a line that divides a figure into two halves that are mirror images of each other

### Rotational Symmetry

The ability of a figure to be rotated less than a full circle and exactly match its original image

### Area

the number of square units needed to cover a flat surface

### Perimeter

the size of something as given by the distance around it

a²+b²=c²

### Hypotenuse

the longest side of a right triangle

### Function

every input has exactly one unique output

### Domain

the set of all inputs

### Range

The set of all outputs.

### Origin

coordinates 0,0 or where the x and y axes meet

### Linear Function

a function whose graph is a straight line