Right triangle trigonometry
key concept
- let theta be an acute in a right triangle and the abbreviations opp, adj., and hyp. refer to the length of the side opposite theta, the length of the side adj. to theta and the length of the hyp., respectively.
* then the six trig. functions of theta are as follows:
- let theta be an acute in a right triangle and the abbreviations opp, adj., and hyp. refer to the length of the side opposite theta, the length of the side adj. to theta and the length of the hyp., respectively.
* then the six trig. functions of theta are as follows:
to solve for a missing side
Step 1: start at angle
Step 2: determine trig ratio
Step 3: set up (equation)
Srep 4: if x is on top-multiply.
if x is on bottom divide
Step 1: start at angle
Step 2: determine trig ratio
Step 3: set up (equation)
Srep 4: if x is on top-multiply.
if x is on bottom divide