Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
72 Cards in this Set
 Front
 Back
 3rd side (hint)
Angle

Corner formed by the intersection of 2 line segments, rays, or lines



Area

Space occupied by a 2D figure



Base

The # in a expression that has a power or exponent above it; the line or plane upon which a geometric firgure is thought of as resting.



Circumference

The distance measured by the line bounding a circle



Complement

For any event E, there is a corresponding event consisting of all the outcomes not in E.



Complementary angles

2 angles whose measures total 90 degrees



Cone

A 3D figure with a circular base and the top meeting at a vertex; it resembles a funnel.



Congruent

2 measures with the exact same value



Crossmultiplying

Multiplying the denominator of one ratio in a proportion by the numerator in the other ration and vice versa.



Cylinder

A 3D figure with 2 circular bases; resembles a can

like a can


Deca

Metric prefix meaning "ten"



Decagon

a ten sided polygon



Deci

Metric prefix meaning "onetenth"



Denominator

the bottom number in a fraction; it idicates into how many parts the whole is divided.



Dodecagon

a 12 sided polygon



Edge

a line or line segment at which 2 plane surfaces meet



Face

anyone of the surfaces of a geometric figure



Heptagon

a 7 sided polygon



Hexagon

a 6 sided polygon



Hyptenuse

The longest side of a right triangle, located opposite the right angle



Icosagon

a 20 sided polygon



Interest

Money paid for the use of money expressed as a percentage per unit of time



Line

Continuously connected points extending to infinity



Line segment

Continously connected points with 2 distinct start and end points



Liter

Metric unit of measure for volume or capacity



Milli

Metric prefix meaning "one thousandth"



Nonagon

a 9 sided polygon



Obtuse angle

An angle whose measure is greater than 90 degrees



Octagon

An 8 sided polygon



Orderd pair

the x axis coordinate and the y axis coordinate (x, y)



Parallelogram

a quaderlateral w/ both pairs of opposite sides parallel



Pentagonal prism

a prism with 2 pentagonal bases



Pentagonal pyramid

a pyramid with a pentagonal base



Perimeter

distance around a figure



Pi

the ratio of a circumference of a cirlce to its diameter; the aprox. value is 3.14



Polygon

a closed plane figure; 2D figure



Polyhedron

a solid figure; 3D figure



Principal

the amount of debt or investment minus the interest



Prism

a 3D object with rectangles for sides or faces



Probability

A # from 0 to 1 that states the likelihood an event will occur



Proportion

an equation with 2 equal ratios on each side of the equal sign



Pyramid

a 3D figure with triangles for sides or faces



Quadrilateral

a 4 sided polygon



Radius

A straight line extending from the center of the circle or sphere to the periphery



Ratio

a comparison of 2 #'s; can be written in the form 1/4 1:4 or 1 to 4



Ray

A line extending in one direction from a fixed point



Reciprocal

THe inversion of a fraction (the numerator becomes the denominator and the denominator becomes the numerator)



Rectangle

a parallelogram with 90 degree angles



Rectangular Prism

a prism with 2 rectangular bases



Rectangular pyramid

a pyramid with a rectangular base



Regular

a 2D figure with all sides the same length and all angles the same measure



Rhombus

a parallelogram with sides of equal length



Right angle

an angle whose measure is exactly 90 degrees



Right triangle

a triangle with one right angle



Rise

how many units up or down a line travels on a graph b/w 2 points



Run

how many units left or right a line travels on a graph b/w 2 points



Scale

A form of ratio often used in maps or models where the first number is the dimension of the map or model and the 2nd # is the dimension of the actual object; written in the form 1:4



Simple interest

found by multiplying the principal by the annual interest rate and then multiplying the result by the # of years or time; i= p*r*t



Similar triangles

if each side of 1 triangle can be multiplied by the same # and the result is the length of each side of a second triangle



Slant height

The height of a lateral side in a 3D figure



Slope

Ratio of the rise to the run



Sphere

a 3D figure that is completely circular in width and height; looks like a hollow ball



Square

a parallelogram with 90 degrees and sides of equal length



Trapezoid

a quadrilateral with only 1 pair of opposite sides parallel



Triangle

a 3 sided figure



Triangular prism

a prism with 2 triangular bases



Triangular pyramid

a pyramid with a triangular base



Vertex

the point where an angle is formed; the corner point of a geometric figure



Vertical angles

opposite angles formed when 2 lines or line segments intersect; the angle measures are congruent



Volume

space occupied by a 3D figure



Supplementary angles

2 angles whose measures total 180 degrees



Surface Area

Sum of the area of each base and face of a 3D figure

