MA111 Unit 6
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18 Terms
hypotenuse
the side that is always across from the right angle
Legs
The other 2 sides of the right triangle; denoted by a and b
acute angle
angle less than 90 degrees
right angle
an angle that is exactly 90 degrees
right angle
an angle greater than 90 degrees
straight angle
an angle that is 180 degrees
adjacent angles
angles that share a side
Complementary angles
angle measurements that add up to 90 degrees
Supplementary angles
angle measurements that add up to 180 degrees
Conjugate Angles (Explementary)
angle measurements that add up to 360 degress
Sinθ
opposite / hypotenuse
cosθ
adjacent / hypotenuse
tanθ
opposite / adjacent
cscθ
hypotenuse / opposite or 1 / sinθ
secθ
hypotenuse / adjacent or 1 / cosθ
cotθ
adjacent / opposite or 1 / tanθ
all sine and cosine values lie between..
-1 and 1
inverse functions are used to find…
angle measurement