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PARALLEGRAM
2 SIDES ARE PARALLEL
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TRAPEZIOD
ONE PAIR OF PARALLEL SIDES
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PERIMETER
ALL SIDES ADDED TOGETHER
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AREA OF CIRCLE
- PIE * R SQUARED
- PIE = 3.14
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AREA OF A TRIANGLE
B * H/2
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VOLUME
- L*W*H
- LENGTH * WIDTH * HEIGHT
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ORDER OF OPERATIONS
- PEMDAS
- PARATHESIS, EXPONENTS, MULTIPLE, DIVIDE, ADD, SUBTRACT
- (PLEASE EXCUSE MY DEAR AUNT SALLY)
- LEFT TO RIGHT
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FORMULA FOR SIDES OF A RIGHT TRIANGLE
LEG / HYPOTENUSE
LEG DIVIDE BY HYPOTENUSE
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CONGRUENT
SAME SIZE AND SHAPE VERSUS SIMILAR SHAPE
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REFLECTED OR REFLECTION
MIRROR OF SHAPE
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SCALENE TRIANGLE
- NO SIDES THE SAME;
- /, //, /// ON EACH SIDE
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ISOSCELES TRIANGLE
TWO SIDES THE SAME
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EQUILATERAL TRIANGLE
ALL SIDES OF TRIANGLE ARE EQUAL
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WHAT IS THE TENTHS, HUNDREDTHS, THOUSANDTHS IN THIS NUMBER
.456
- Tenths= 4
- Hundredths= 5
- Thousandths= 6
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Greatest common factor
- Great number two numbers have in common
- Example 9 and 18
- 9 is the greatest common factor
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Least common multiple
Lowest multiple for two numbers
- 2 and 4
- least common multiple is 4
- 5 10
- least common multiple is 10
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What are different ways to say SOLVE
Simplify, evaluate
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Prime vs composite
- Prime number is a naturally number that can only go into itself and 1
- example
- 1,2,3,5,7,11,13,17,19, 23, 29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97
- Composite number are all other numbers that can be divided by other numbers.
- 4,6,8,9,10..etc...
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What are twin primes
prime numbers that are one number apart.
11 and 13; 17 and 19; 41 and 43; 71 and 73
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What is the sum of all angles on a triangle?
180 degrees
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What are supplementary angles?
Angles add up to 180 degrees
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What are complementary angles?
Angles add up to 90 degrees
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How many degrees is a full circle
360 degrees
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How many degrees is a half circle
180 degrees
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How many degrees is a quarter circle?
90 degrees
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How many ounces are there in a pound?
16 oz to 1 pound (lb)
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How do you change a % to a decimal?
- 30% = .30
- 5% = .05
- 110% = 1.10
- Move the decimal over two numbers and if there isn't two numbers put a zero infront of the number like the 5% above
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What are intersecting lines?
- \ /
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- \/
- /\
- Lines that cross each other
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What are parallel lines?
_________________
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Line go in same direction and do not cross
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What are perpendicular lines?
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| Lines that intersect and form a right angle | |
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Seven to the fifth power is the same as?
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What does any number to the zero exponent equal to?
- one
- 17 to the zero = 1
- 1 to the zero = 1
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What are the different types of triangles?
Right, equilateral, and isosceles
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What is the GCF and LCM of 28 and 42?
14, 84
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Which way is vertical?
Up and Down
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Which way is horizontal?
side to side
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What is a Fractal?
A geometeric shape created by a rule that creates smaller and smaller parts of the orginal shape.
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What a score equal to?
A score is 20 years
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What is Indiana sales tax rate?
7% = .07
When finding sales tax take the amount times 1.07
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What are vertical angles
Two opposite angles that are formed when two lines intersect. They are the same amount of degrees.
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What is a reciprocal?
- It is the number reversed or upside down so that when they are both multiplied they equal 1
- Example 1/4 and 4/1.
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One to any exponent is always what?
one (1)
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How do you find the length of a path through a square of a rectangle?
Add the length to the second power and the height to the second power and square the answer
Example height = 36; length=27
- 36^2 + 27^2
- 1296+ 729 = 2025
- Then square 2025 = 45
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