Remember This Shit Flashcards
(42 cards)
How to tell if a fraction will be a recurring decimal
Yeah he denominator in it’s simplest form has prime factors of not only 2 or 5
What angle do a tangent and radius meet at
A tangent and a radius meet at 90 degrees
What do two radii form
Two radii form an isosceles triangle
Where does a perpendicular bisector of a Chord pass through
The perpendicular bisector of a chord passes through the centre of the circle
What is the relationship between the angle at the centre of a circle compared to the angle at the circumference
The angle at the centre of a circle is twice the angle at the circumference
What angle does a triangle made in a semi circle make
The angle in a semi circle is 90 degrees
What are angles in the same segment
Angles in the same segment are equal
Similar to the Engels in a semi circle are 90 degrees but not at the diameter
What do opposite angles on Esther sides of a chord add to
Two angles on opposite sides of a chord add to 180 degrees
What do opposite angles in a cyclic quadrilateral equal
They add to 180
What is the alternate segment theorem
The angle between a tendency and a chord is always equal to the angle in the opposite segment
What are the four ways or proving a triangle is congruent
Three same sides
Two same angles and a corresponding side
Two sides and the Engels between them are the same
A right angle a hypotenuse and an other side match up
What does congruent mean and what does similar mean
Congruent- same size same shape
Similar- same shape different size
What to remember when proving something and it asks for even numbers
Use 2a and 2b rather than 2a and 2a+2
How do you translate a graph in the y axis
Y=f(x)+a
It will go up a spaces
Y=f(x)-a
It will go down a spaces
How to translate a graph in the x axis
Y=f(x-a)
It will move the graph a spaces right
Y=f(x+a)
It will move the graph a spaces left
How do you reflect a graph in the y axis
Y=f(-x) is a reflection of y=f(x) in the y axis
How do you reflect a graph in the x axis
Y=-f(x) is a reflection of y=f(x) in the x axis
How to find sin cos and tan
Opposite of 90 degrees is 2
The angle on the right of 90 is 30 and the length between us root3 other angle is 60 and other length is 1
How to find points from an equation
The number at the end added or subtracted is y intercept
Complete square and opposite of number in brackets and the number outside is the minimum co ordinates
Factorise to find c intercepts or quadrats Formula o
Rantionolise denominator
A/
3-root7
Times by 3+root 7 to rationalise
How to find lower common multiple
One number * unique prime factors of the other number
How to find interior angles of polygon
(Sides-2)*180
What is sohcahtoa triangle for 45 degrees
Hypotenuse =root 2 other sides = 1 and angles are 45,45,90
When do you need to add 1 to find a quartile range
When it’s ungrouped date
Not histograms
