MATH for final exam
vocab and other information that i will need to know for my final exam.
Terms
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- Rational number
- decimal that repeats or ends
- Solving 2 step equations
- 1. undo addition and subtraction 2. undo multiplication and division
- Hypotenuse
- side across from right angle
- Acute
- between 0 degrees and 90 degress
- Rate
- is a special kind of ration that compares 2 quanitys measured in different units example: miles per hour (mph)
- Corresponding Angles
- angles of 2 similar polygons that are in the same relative position example: 1,2,3,4
- Radius
- the distance from the center to the outside of a circle
- Triangles may be classified according to
- acute, right, obtuse,and staight
- volume
- the space within a shape. has to have 3 dimensions
- Prism
- 2 congruent and parallel bases
- Percent Change
- ratio of the amount of change to the orginal number
- Polyhedron
- 3-D shape with flat surfaces many sides
- Percent%
- "per" "cent" out of 100
- Corresponding Sides
- sides of similar polygons that are in the same relative position example; a,b,c,d
- Line Segment
- part of a line
- Compass
- a tool used to draw a circle
- Cross Products
- multiply the numerator of one ratio by the denominator of the other
- sqaure root
- the inverse(opposite) of squaring a number
- formula for finding the volume of a cylinder
- V=3.14r2*h
- Formula for finding volume of a prism
- v=lwh
- Trapezoid
- a 4 sided figure with 1 set of parallel lines
- Obtuse
- between 90 degrees and 180 degress
- Interval
- tells what to multiply the variale by
- Adjacent Angle
- angles that share a ray and a vertex.
- formula for finding the area of a triangle
- a=b*h/2
- Ratio
- comparison of 2 numbers by division example: 2:3 teachers for every 15 students
- Squar Units
- area is measured in it cm2. in2. mm2. ft2. yd2. km2. mi2.
- Plane
- flat surface
- Chord
- line connecting two points of a circle
- formula for function rule
- y=_x
- Irrational number
- a decimal that neither repeats or ends. GOES ON FOREVER
- Formula for finding the surface area of a cylinder
- SA=2*3.14r2+3.14dh
- Vertical Angle
- angles that are opposite eachother and share a vertex
- Perimeter
- the distance around a shape
- Linear Units
- perimeter is measured in it example cm. in. mm. ft. yd. km. mi.
- Pythagorean Therom
- a2+b2=c2 is only true for the right angle
- perfect square
- a number that is a square of an integer
- formula for finding the area of a recatangle
- a=b*h
- Vertex
- common point in an angle
- C=
- piexD
- sequence
- set of numbers that follow a pattern
- formula for finding the area of a circle
- A=3.14r2
- formula for finding the circumference of a circle
- C=3.14d
- Straight Line
- 180 degrees
- Whole numbers
- counting numbers
- Congruent Angles
- angles with the same measurement
- Angle
- formed with 2 rays with a common end point
- Right
- must be 90 degress
- Congruent Sides
- angles with same measurement
- Ray
- part of a line with 1 end point
- Associative
- if the grouping is changed in addition or multiplication the answer does not change example: a+(b+c)=(a+b)+c
- arithmatic
- find each term by adding the fixed number
- Area
- the space inside a shape
- Complementary
- if the sum of the measure of 2 angles is 90 degress
- Equilateral
- 3 congruent sides
- Distibutive
- can multiply a number by each number added together
- Therom
- rule in math
- Diameter
- the distance from 1 side of a circle to they other that goes through the center
- Proportion
- is an equation stating that 2 ratios are equal
- geometric
- find each term by multiplying the previous term by a fixed # which is called common ration
- function
- is a relationship that assigns exactly one output for each input value
- Coefficient
- # multiplied by a variable goes in front
- common ratio
- fixed #
- terms
- #'s and variables seperated by addition and subtration
- Suplamentary
- if the sum of the angles are 180 degrees
- Intergers
- whole numbers and their opposites
- formula for finding the area of a parallelogram (rhombus)
- a=b*h
- formula for finding the area of a trapezoid
- a=(b1+b2)*h/2
- Cubic units
- volume is measured in it example; 48 cubic units
- Scalene
- with NO congruent sides
- C/D=
- pie
- Line
- goes on forever
- Isosceles
- with at least 2 congruent sides
- Communtative
- if the order is changed in addition and multiplication the answer does not change example: a+b=b+a ab=ba
- Similar Figures
- polygons that have the same shape but not necessarily the same size.
- Plane geometry
- figures have only 2 dimensions
- Like terms
- are terms which have the same variable
- Parallelogram
- 2 sets of parallel sides
- To determine the function rule
- 1. analyze the function rule in words 2. write the function rules as an equation