| A | B |
|---|
parallelogram area?,  | a*h |
ellipse area?,  | (pi )ab |
trapezoid area?,  | (1/2)h*(b+a) |
cube volume?,  | s³ |
rectangular prism volume?,  | pir²h |
cylinder volume?,  | (1/3)bh |
pyramid volume?,  | (1/3)bh |
cone volume?,  | (1/3)pi(r²)h |
sphere volume?,  | (4/3)pi(r³) |
ellipsoid volume?,  | (4/3)pi*r1*r2*r3 |
cube surface area?,  | 6s² |
| rectangular prism surface area?, | 2(ab)+ 2(ac) +2(bc) |
sphere surface area?,  | 4(pi)r² |
in a 45-45-90 right triangle what are side lengths,  | x, x, and x√2 |
in a 30-60-90 right triangle- what are the side lengths,  | x, x√3 and 2x |
if A is area of equilateral triangle with sides s, what is area of A,  | A= (s²√3)¼ |
what are 2 triangle inequality theorems?,  | a+b>c and a-b<c |
what is the sum of all four angles of parallelogram?,  | 360 degrees |
what is properties of parallelograms,  | opposite sides are equal opposite angles are equal adjacent angles add up to 180 degrees the diagonals bisect each other |
| what is the formula for the length of an arc in x degrees? | (x/360)(2πr) |
| what is formula for the area of a sector formed by an arc? | (x/360)(πr²) |
| what is equation for the nth term of arithmetic sequence whose common difference is d? | A(n)= A(1) + (n-1)d |
| what is equation for the nth term of geometric sequence whose common ratio is r? | A(n)= A(1)r^(n-1) |
| for systems of linear equations like what is xy if 2x+y=10 and x-y=2 what do u do? | add or subtract the equations (xy=8) |
| for solving something w/ variable in denominator what do u do | multiply all terms by variable to get variable out of denominator |
| is one a prime number | no |
| is 0 an even integer? | yes |
| what are sets? | collections of elements or members |
| what is a union of sets and what is the symbol? | a union of sets consists of all elements in A and B symbol is U so AUB |
| what is intersection of sets and what is the symbol? | a set consisting of only elements that are in both A and B sets symbol is backwards U (П) so AПB |
| what is solution set? | set of numbers that satisfies the equation |
| sphere surface area?, | 4πr² |
