Trigonometry Key Words Flashcards
1
Q
What is the hypotenuse
A
The longest side
2
Q
What is the opposite
A
The side opposite the angle being used
3
Q
What is the adjacent
A
The (other) side next to the angle being used
4
Q
When you put sin,cos or tan in the calculator what do you put aswell
A
Sin x
Cos x
Tan x
X is the angle being used
5
Q
How do you find the angle using the inverse
A
Press shift then sin,cos or tan
6
Q
What is the 3 step method of 3D trigonometry
A
- make a right angled triangle between the line and the plane
- draw a 2D sketch of this triangle and mark on lengths of two sides(may have to use Pythagoras to work out one)
3: use trig to find angle
