Trigonometry EW EW EEEEWWWW Flashcards
1
Q
What is the hypoteneuse
A
The longest side, opposite the right angle
Calculated using pythag
2
Q
What is the opposite site
A
The side opposite to the angle we know or want to know
3
Q
What is the adjacent side?
A
The ‘other’ side
4
Q
When do you use sin?
A
When you know one of opposite and hypotenuse and want to find out the other
5
Q
When do you use cos
A
When you know one of adjacent and hypotenuse and want to find out the other
6
Q
When do you use tan
A
When you know one of opposite and adjacent and want to find out the other
7
Q
How to remember those?
A
Soh Cah Toa
8
Q
How to operate
A
Trig fuction(angle) = side1/side2
Eg. Sin(72) = O/H = O/15
-> O = 15× sin(72)
-> O = 14.92
9
Q
Area of a triangle?
A
½absin(c)
a and b are sides either side of angle c
10
Q
Please look at your book for sine rule diva
A
Do it.
