Question

Hiii I just need to know the answer for this. Please lend me a helping hand.I’ll make this 15 points

Answer 1

Answer:

I'm going to also give you how to get the answer... not just the answer.. you will need to know this for a test :/  so learn it  :P

Step-by-step explanation:

Sin(30)=12

to remember what Sin and Cos at those speacial angles in degrees are.. just use this Sin(degrees)

Sin(0) = 0/2         =0

Sin(30)= $\sqrt{1}$/2         = 1/2

Sing(45) = $\sqrt{2}$/2    = $\sqrt{2}$/2

Sin(60)=$\sqrt{3}$/2   = $\sqrt{3}$/2

Sin(90)=$\sqrt{4}$/2    = 1

Cos is exactly the same but counts backwards from 90°

Cos(90) = 0/2         =0

Cos(60) =  $\sqrt{1}$/2         = 1/2

Cos(45) = $\sqrt{2}$/2    = $\sqrt{2}$/2

Cos(30) = $\sqrt{3}$/2   = $\sqrt{3}$/2

Cos(0) =$\sqrt{4}$/2    = 1

note that the numerators just count from  0,1,2,3,4  , see?  you can remember sin and cos  now  :)   since you can count to 4   :P

Sin(30) =12

1/2 =12  while that statement makes no sense....  obviously 1/2 isn't equal to 12 but.. what's being said is that the angle of 30°  gives you a side that is 12 units long.  

so looking at what I wrote above.. which angle in degrees matches Sin when you look at Cos?  

Sin(30)= 1/2 and Cos(60) also = 1/2  huh

sooo  β = 60 °

got it?  :/