Math Flashcards
What do you know when a right triangle is inscribed in a circle?
The right triangle will have a diameter if the circle as it’s hypotenuse!
Two triangles inscribed in a circle spanning the same arc. What do you know?
They are both equal in measure.
Possibly the same angles?
Odd minus odd =
Even!!!
X^a=x^b
What do you know?
X could be 0 or 1. A and b can be anything
Formula for the sun of numbers
Top number plus bottom divided by 2,
Then multiply that number by the number of terms
Number of terms formula is top minus bottom plus one
Number of terms formula for something like 7 interval
Too minus bottom divided by interval plus one
Perfect square has how many integers? And can be expressed as how many prime numbers?
Odd number- always.
Can be expressed as an even number of prime numbers
Rhombus area?
Cannot be determined unless you know the height of the rumpus.
What do you need to know in order to calculate the circumference when you’re given a little bit of an arc
Absolutely need to know the angle of the section of the circle and if the section is over the center of the circle
(X-y)^2 long form
X^2-2xy+y^2
Combinatorics- when two ppl can’t sit next to each other?
Find all other combos and then find with the factor and then subtract!!
Area of a trapezoid formula
(B1+b2)/2 x height
Bisect means
Divide equally
Length of two sides of the triangle must…
Add up to be greater than the third side
The length of any side of a triangle must be greater than…
The difference of the other two sides
Slope formula
(Y1-y2)/(x1-x2)
Formula for the sum of interior angles of a polygon
(N-2) x 180
Quotient
The answer!
Divisor
What a number is divided by (8 div by 6, 6 is divisor )
Dividend
The original number
Zero is a multiple of _______
But a divisor of ______
Everything, nothing
14^2
196
2^5
32
Isosceles triangle hypotenuse
X root 2
