Math Flashcards
Rate x Time
Distance= ?
A positive integer which has two distinctive divisors: 1 and itself; 2, 3, 5, 7, 11, 13, 17, & 19.
Prime Number
Distance/Rate
Time= ?
Distance/Time
Rate= ?
(Work Rate) x Time
Work= ?
To conclude “n” is a prime number, “n” must not be divisible by the prime number less than (root)”n”
Checking Prime
(Line)”ac”= (root)(x2-x1)^2+(y2-y1)^2
Distance between a line
If “b” is the midpoint of line segment “ac” then “b’s” coordinates are
((x1+x2)/2,(y1+y2)/2).
360 degrees or “2 x pie x rad”
Rad=radian
A complete revolution
Two angles whose measures sum to 180; Two angles formed by a straight line
Supplementary Angles
Two lines that do not intersect or meet
Parallel lines
Where a and b are sides containing the right angle and c is the hypotenuse of a right-triangle.
Pythagoras Theorem
These triangles have three equal sides, and all three angles are 60◦.
Equilateral Triangle
Such has two equal sides. The “base” angles
(the ones opposite the two sides) are equal.
Isosceles Triangle
Two or more triangles are such if they have the same shape. The corresponding angles are equal, and the corresponding sides
are in proportion.
For example, the 3–4–5 triangle and the 6–8–10 triangle from before are such since their sides are in a ratio of 2 to 1.
Similar Triangles
