8.4 Trig Flashcards
1
Q
Hypoteunse
A
A side of a triangle:
Longest line. Diagonal one.
2
Q
Opposite
A
The side of triangle
- shortest side
- opposite of <0
-perpendicular to <90 degrees
-Between to (hypotenuse) and (adjacent)
3
Q
Adjacent
A
Side of triangle
- mid length
-perpendicular to <90 degrees
-next to angle 0
4
Q
Sine EQUATION
A
opposite
—————-
Hypotenuse
5
Q
Cosine EQUATION
A
Adjacent
——————
Hypotenuse
6
Q
Tangent EQUATION
A
Opposite
—————-
Adjacent
7
Q
Trigonometric ratio definition
A
Ratio of length of TWO SIDES of a RIGHT TRIANGLE
8
Q
90 60 30 Triangle
A
/ |
2x / | x\/3
/___|
x
60 • 90 • 30
LONG LEG: \/3
HYPOTENUSE: 2x
SHORT LEG: x
9
Q
45 45 90
A
x\/2/ | x
/__|
x
Hypotenuse: \/2
Legs: equal value X
