+0  
 
+1
122
5
avatar+1844 

Not sure if I do the same as the last two q's 11/tan(28)

RainbowPanda  Feb 12, 2018
 #1
avatar+13014 
+2

COS (28) = 11/x    Adjacent/hypotenuse

ElectricPavlov  Feb 12, 2018
 #2
avatar+1844 
+1

So it would be 12.5?

RainbowPanda  Feb 12, 2018
 #3
avatar+89709 
+2

Can't use the tangent here

 

We know the side adjacent to the 28° angle  and we are trying to find the side opposite the right angle (the hypotenuse )

 

And the trig function that relates the adjacent  side and the hypotenuse is the cosine

 

cos (angle measure )  =  adjacent / hypotenuse

 

oos ( 28° )  =  11 / x      multiply both sides by x

 

x cos (28°)  = 11      divide both sides by cos (28°)

 

x   =  11 / cos (28° )  =  12.46

 

 

cool cool cool

CPhill  Feb 12, 2018
 #4
avatar+1844 
0

Thank you ^-^ I ended up getting the answer.

RainbowPanda  Feb 12, 2018
 #5
avatar+89709 
0

OK  !!!!

 

 

 

cool cool cool

CPhill  Feb 12, 2018

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