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a tv antenna of 8 ft height is located on the top of a house . from a point on the ground the angle of elevation to the top of the house is 17 degree and the angle of elevation to the top of antenna is 21.8 degree. fid the height of the house. 

 May 29, 2022
 #1
avatar+12 
+1

answer is 25.94

 

 

but how

 May 29, 2022
 #2
avatar+118141 
+1

Like this.

 

\(tan17=\frac{x}{y}\qquad (1)\\ tan 21.8 = \frac{x+8}{y}\qquad (2)\)

 

solve simultaneously.

 May 30, 2022
 #3
avatar+118141 
+1

And welcome to the web2.0 forum.   I hope you have fun and learn lots.

 May 30, 2022
 #4
avatar+12 
+1

thank u

aanaelsa.123  May 30, 2022

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