Finding an angle

//trigonometry lesson #6 

hey ya'll, we're leading up to our last few lessons and we all hope that ya'll are learning soemthing new after every blog post!

but for now let's learn more on finding the angle!


today's lesson we'll be looking more towards finding an angle. 


Example:

(c) = 13m

(a) = 9m 

if we look at this right- angled triangle since already know that a right angle is 90 degrees we're going to find theta (θ) using a calculator.

sin θ = opp  

           hyp

sin-1 = (9/13)

   

θ = 43.8

          

Solution:

SOH, CAH or TOA??

Use sin because O and H are known.

sin θ = 9

         13

θ = 43.813 ...

θ = 43.8

judy, hannah & paul