The top of a 15 m. high tower makes an angle of elevation of 60 degree with the bottom of an electric pole and an angle of 30 degree with the top of the pole. What is the height of the pole?	Choose the correct choice from the following choices
A) 12 m.
B) 10 m.
C) 11 m.
D) 5 m.
E) 15 m.
let distance between tower and pole be x &amp; height of pole be y.   x=15/tan60 &amp; (15-y)/x = tan 30   thus solving two equation gives y= 10m   ANSWER:10 m.
<result>B</result>
The top of a 15 m. high tower makes an angle of elevation of 60 degree with the bottom of an electric pole and an angle of 30 degree with the top of the pole. What is the height of the pole?