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avatar+64 

Determine the value of a.

 Apr 13, 2019
 #1
avatar+103121 
+1

Connect WY....this will form right triangle  WXY

Since WX = WY....then this will be an isisceles right triangle

And WY  = √[4^2 + 4^2]  = √32  

 

And angle WYX  = 45

So....in triangle WYZ, angle WYZ =  135 - 45  = 90

 

So.....triangle WYZ is also a right triangle with WZ being the hypotenuse

 

So....

 

a  = √(WZ^2 - WY^2)   = √ ( 9^2  - (√32)^2 ]  = √ [81 - 32]   = √49  =  7

 

 

cool cool cool 

 Apr 13, 2019
 #2
avatar+10484 
+1

Determine the value of a.

laugh

 Apr 13, 2019
 #3
avatar+64 
0

Thanks!!!

 Apr 19, 2019

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