Homework Help: surveying math

Posted by Kasey on Friday, October 15, 2010 at 11:05pm.

I need help with this problem and I need to show my work. Can anyone help me?

A vertical angle of -40 is recorded between A and B. The slope distance, after meteorological corrections, is 806.388 m. What is the horizontal distance between A and B?

surveying math - MathMate, Saturday, October 16, 2010 at 4:36pm
The theodolite measures 0° when the telescope is horizontal, and 90° when it is vertically upwards. So -40° is 40° below the horizontal.

The sloping distance is 806.388, so the horizontal distance is 806.388*cos(40°)=617.729

Answer this Question

Related Questions

mathematics - Need help with this math problem please. Work need to be show but ...
Math - I already figured most of these out, but I need to learn how to SHOW MY ...
Math (surveying) - I am having a really hard time figuring this problem out. I ...
math - 4 5/8 + 9 3/5 = need to show how I got answer I know that the Lcd is 40 ...
Math - I really need a math dictionary... I need the following definitions ...
physics and geometry - ok proving that thest two angles are equal Gesh almost ...
Physics - physics - drwls, Sunday, January 24, 2010 at 2:50am Compute the angle ...
math - MathMate attempted to help but did not show how the problem is answered. ...
MATH!! NEED HELP! If I don't pass this, Ill fail!! - -20 = 7 + x/2 need to ...
Math-Algebra - Solve: 3x-2y=10 2x+3y=-2 Graph: Substitution: Elimination: Show ...

For Further Reading

First Name:
School Subject:
Answer: