Unit 2 quiz Flashcards
Pythagorean triples with an odd shortest side (6 of them)
3,4,5
5,12,13
7,24,25
9,40,41
11,60,61
13,84,85
Pythagorean triples with an even shortest side (5 of them)
8,15,17
12,35,37
16,63,65
20,99,101
20,21,29
Rule of sides for 30º - 60º - 90º
shortest leg: x
longest leg: x√3
Hypotenuse: 2x
Rule of sides for 45º - 45º - 90º
leg 1: x
leg 2: x
hypotenuse: x√2
how many feet per mile
5280ft
what are complimentary angles
angles that add to the initial angle to make 90º
what are supplementary angles
angles that add to the initial angle to make 180º
14^2
196
15^2
225
13^2
169
12^2
144
11^2
121
√32 simplified
4√2
√125 simplified
5√5
reciprocal of 0
undefined
reciprocal of 1/2
2
reciprocal of √2/2
√2
reciprocal of √3/2
2√3/3
reciprocal of 1
1
reciprocal of √3/3
√3
reciprocal of √3
√3/3
Sine (sin)
Opposite / hypotenuse
Cosine (cos)
Adjacent / hypotenuse
Tangent (tan)
Opposite / adjacent
how to find perimeter of a sector
Diameter of circle times pi plus Diameter of circle times the fraction of the angle over 360º or 2π
reciprocal of sine
csc - cosecant
reciprocal of cosine
sec - secant
reciprocal of tangent
cot - cotangent
in quadrant I sin is ___ and cos is ___
positive, positive
in quadrant II sin is ___ and cos is ___
positive, negative
in quadrant III sin is ___ and cos is ___
negative, negative
in quadrant IV sin is ___ and cos is ___
negative, positive
