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 ...
- 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 ...
- trig - A person stands at a distance from the tower and eyes the top of the ...

More Related Questions