Posted by mier on Sunday, March 9, 2014 at 7:40pm.
two points A and Bare 80 feetapart on the same side of A towerand on a horizontal line through its foot.if angle of elevation of the top of the tower at A is 21 degree and B is 46 degree find the height of the tower.

math trig  Steve, Monday, March 10, 2014 at 5:37am
If B is at distance x from the tower of height h,
h/x = tan 46°
h/(x+80) = tan21°
so, eliminating x, we get
h/tan46° = h/tan21°  80
Now just solve for h

math trig  Anonymous, Thursday, December 10, 2015 at 10:06am
47.91
Answer This Question
Related Questions
 math  two points A and B 80 ft. apart lie on the same side of a tower and in a ...
 math 115a  two points A and B 80 ft apart lie on the same side of a tower and ...
 trig  a tower that is a 200 meters is leaning to one side. from a certain point...
 Trig  From a point P on level ground, the angle of elevation of the top of a ...
 plane and trigonometry  a 30 foot flagstaff is fixed in the center of a ...
 math  the elevation of a tower from a point on the ground is 30 at a point on ...
 Math  If the angle of elevation of a tower from two points at distance a and b ...
 maths  Q vertical pole and a tower are on the same level Ground.from the top of...
 Trigonometry  A 30foot flagstaff is fixed in the center of a circular tower 40 ...
 Trig  The angle of elevation from a point on the ground to the top of a tower ...
More Related Questions