+0  
 
0
41
3
avatar+661 

http://prntscr.com/lfi57v

 

i know we use tan, but dont know how to solve it 

 

tan= 15/8?

critical  Nov 7, 2018
edited by critical  Nov 7, 2018
edited by critical  Nov 7, 2018
 #1
avatar+13718 
+3

15/8  = 1.875

to find the ANGLE    arctan (1.875)      arctan is tangent inverse...= 61.92 degrees

ElectricPavlov  Nov 7, 2018
edited by ElectricPavlov  Nov 7, 2018
edited by ElectricPavlov  Nov 7, 2018
 #2
avatar+316 
+2

Yes tan= 15/8 it's between 61,62 degrees!

Dimitristhym  Nov 7, 2018
 #3
avatar+91360 
+2

tan x  = 15 / 8

 

To find the angle x, take the arctan  of 15/8

 

arctan (15/8)  ≈  61.93°

 

 

 

cool cool cool

CPhill  Nov 7, 2018

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