Thursday

September 18, 2014

September 18, 2014

Posted by **john** on Monday, February 11, 2013 at 11:25pm.

- Pre cal -
**Steve**, Tuesday, February 12, 2013 at 12:22amIf the distance of A is d, and the building's height is h,

(h-8.2)/d = tan 31°20'

8.2/d = tan 12°50'

so, equating d,

(h-8.2)/tan 31°20' = 8.2/tan 12°50'

(h-8.2)/.6088 = 8.2/.2278

h = 30.11 m

**Answer this Question**

**Related Questions**

Pre-Cal/Trig - Explain how to solve the following question. Surveying: From a ...

Pre calculus - From h a point A that is 10 meters abov level ground, the angle ...

precal - From a point B that is 9 meters above level ground , the angle of ...

Pre-Calculus - 1.The angle of elevation to top of a building from a point on the...

Precalculus - To estimate the height of a building, two students find the angle ...

Maths - I have a diagram in which AB is a vertical cliff. BC is a vertical ...

maths - An observer on top of a building 66 metres high,finds the angle of ...

Math - Trig - From the foot of a building I have to look upwards at an angle of ...

Trigonometry - From the foot of a building I have to look upwards at an angle of...

Math - Trig - From the foot of a building I have to look upwards at an angle of ...