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avatar+2448 

Okay so are the formulas the same as before? There are 2 other angles given now..

 Feb 26, 2019
 #1
avatar+18965 
+3

OK.....

1  the arc C  all of the way around to A   is   2 * (5x+2)      

           This same arc is equal to 360 - 87 - 39     Right?   Can you do it now?

 

2  ARC YZ = 2 * 59     This plus  the 75 degree arc      =   2 * 59 + 75

                                                      THIS plus the  17x-20 arc = 360 degrees (the entire circle)

                                                 so  2 * 59 + 75   + 17x -20 = 360     Right?  Need more?

 Feb 26, 2019
 #2
avatar+2448 
0

Okay so I would have to do 2*4 and that would be 5x+4=234

And eventually I would get 46

For the next one...I'm not sure actually. 17x-20+268=360??

RainbowPanda  Feb 26, 2019
 #4
avatar+18965 
0

close RP    2*(5x+2) = 360 - 87-39

                   10x +4  = 234   continue......

ElectricPavlov  Feb 26, 2019
edited by ElectricPavlov  Feb 26, 2019
 #6
avatar+2448 
0

Wait so i'm actually wrong???

RainbowPanda  Feb 26, 2019
 #7
avatar+18965 
+1

I think so RP      10x + 4 = 234

                             10x = 230

                                  x = 23

ElectricPavlov  Feb 26, 2019
 #8
avatar+2448 
0

Oh okay it seems like it could be either one >.< im confused

RainbowPanda  Feb 26, 2019
 #9
avatar+18965 
+1

Here is where you went wrong:

 

close RP    2*(5x+2) = 360 - 87-39       =======>    2*(5x+2) does not equal  5x + 4

                   10x +4  = 234

ElectricPavlov  Feb 26, 2019
edited by ElectricPavlov  Feb 26, 2019
 #10
avatar+2448 
0

Oh yeah you're right! My bad! 

RainbowPanda  Feb 26, 2019
 #3
avatar+103148 
+2

 

 

For the second one....note that arc YZ  = 2 * 59 =   118

 

So we have that

 

Sum of the measures of the arcs = 360

 

75 + 118 + (17x - 20) = 360      simplify

 

55 + 118 + 17x   =  360

 

173 + 17x = 360       subtract  173 from both sides

 

17x = 187     divide both sides by 17

 

x = 11

 

 

cool cool cool

 Feb 26, 2019
edited by CPhill  Feb 26, 2019
 #5
avatar+2448 
0

Thanks that makes sense lol

RainbowPanda  Feb 26, 2019

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