Surveyors Transit

October 16, 2010 5:22 am | Surveying Equipment

Can you solve this trig problem?

A surveyor is measuring the distance across a small lake. He has set up his transit on one side of the lake 130 feet from a piling that is directly across from a pier on the other side of the lake. From his transit, the angle between the piling and the pier is 55 degrees. What is the distance between the piling and the pier to the nearest foot?

I cannot understand what to do. My main problem really is that I can't visualize the picture. :[

This problem is a little hard to visualize

http://i43.tinypic.com/ll4qs.jpg

look at that picture, i hope that helps you better understand this problem.
Now you should try the problem on your own.

You can check your answer with the work below:
We'll use the equation
tangent(angle) = opposite/adjacent
tangent(55º) = opposite/130
opposite=tangent(55º) x 130
opposite = 185.66 feet

=]

VINTAGE SURVEYORS TRIPOD BRASS THEODOLITE TRANSIT WOOD DECORATION ART
VINTAGE SURVEYORS TRIPOD BRASS THEODOLITE TRANSIT WOOD DECORATION ART
$145.00
Time Remaining: 1d 9h 5m
Buy It Now for only: $145.00

LIETZ TRANSIT N010C IN HARD CASE FOR SURVEYORS SOKKISHA NICE CONDITION
LIETZ TRANSIT N010C IN HARD CASE FOR SURVEYORS SOKKISHA NICE CONDITION
$695.00
Time Remaining: 1d 10h 47m

TOPCON AG 30 TRANSIT FOR SURVEYORS IN HARD CASE NICE CONDITION
TOPCON AG 30 TRANSIT FOR SURVEYORS IN HARD CASE NICE CONDITION
$175.00 (1 Bid)
Time Remaining: 1d 10h 58m

Vintage Sears Craftsman Surveyors Transit Scope w Bubble Level in Original Case
Vintage Sears Craftsman Surveyors Transit Scope w Bubble Level in Original Case
$20.00
Time Remaining: 1d 13h 10m

Surveyors Transit Berger IN 5177 in Case
Surveyors Transit Berger IN 5177 in Case
$135.00
Time Remaining: 4d 15h 17m

BRUNTON 5008 POCKET TRANSIT PACKAGE SURVEYORS COMPASS SURVEYING FORESTRY
BRUNTON 5008 POCKET TRANSIT PACKAGE SURVEYORS COMPASS SURVEYING FORESTRY
$499.00
Time Remaining: 4d 23h 47m
Buy It Now for only: $499.00

CUBIC CL 22 SURVEYORS SURVEYING TRANSIT LEVEL CASE EQUIPMENT
CUBIC CL 22 SURVEYORS SURVEYING TRANSIT LEVEL CASE EQUIPMENT
$24.95
Time Remaining: 5d 9h 55m

Vintage CRAFTSMAN Sears SURVEYORS TRANSIT LEVEL Old Working Survey Instrument
Vintage CRAFTSMAN Sears SURVEYORS TRANSIT LEVEL Old Working Survey Instrument
$69.99
Time Remaining: 6d 9h 9m
Buy It Now for only: $69.99

Kern E1 surveryors transit KERN model DM504 surveyors transit Estate Sale Case
Kern E1 surveryors transit KERN model DM504 surveyors transit Estate Sale Case
$399.00
Time Remaining: 6d 19h 11m

 vintage SOKKISHA  SURVEYORS TRANSIT  TOKYO 8530
vintage SOKKISHA SURVEYORS TRANSIT TOKYO 8530
$650.00
Time Remaining: 8d 22h 4m
Buy It Now for only: $650.00

SECO 4811 24 AUTO LEVEL TRANSIT SURVEYING WITH CASE NICE CONDITION
SECO 4811 24 AUTO LEVEL TRANSIT SURVEYING WITH CASE NICE CONDITION
$199.99
Time Remaining: 9d 8h 27m
Buy It Now for only: $199.99

THS Optical Surveyors Builders TRANSIT Model 7401 Japan w Wood Case 1950s
THS Optical Surveyors Builders TRANSIT Model 7401 Japan w Wood Case 1950s
$349.00
Time Remaining: 9d 17h 14m
Buy It Now for only: $349.00

 K  E  Construction Surveyors TRANSIT with CASE
K E Construction Surveyors TRANSIT with CASE
$239.99
Time Remaining: 13d 21h 6m
Buy It Now for only: $239.99

NEW BRUNTON 5008 POCKET TRANSIT SURVEYORS COMPASS SURVEYING FORESTRY
NEW BRUNTON 5008 POCKET TRANSIT SURVEYORS COMPASS SURVEYING FORESTRY
$299.99
Time Remaining: 15d 12h 6m
Buy It Now for only: $299.99

VINTAGE SURVEYORS TRANSIT TRIPOD MODEL 78 0030 KEUFFEL  ESSER KE USA
VINTAGE SURVEYORS TRANSIT TRIPOD MODEL 78 0030 KEUFFEL ESSER KE USA
$175.00
Time Remaining: 19d 8h 41m
Buy It Now for only: $175.00

NEW BRUNTON 5010 GEO POCKET TRANSIT SURVEYING COMPASS GEOLOGY FORESTRY
NEW BRUNTON 5010 GEO POCKET TRANSIT SURVEYING COMPASS GEOLOGY FORESTRY
$689.00
Time Remaining: 20d 23h 40m
Buy It Now for only: $689.00

Vintage Ertel Wood Tripod Surveyors Transit Camera
Vintage Ertel Wood Tripod Surveyors Transit Camera
$175.00
Time Remaining: 21d 19h 58m
Buy It Now for only: $175.00

DAVID WHITE MODEL 8300 SURVEYORS LEVEL TRANSIT INCL CASE  TRIPOD SHIPS FREE
DAVID WHITE MODEL 8300 SURVEYORS LEVEL TRANSIT INCL CASE TRIPOD SHIPS FREE
$289.99
Time Remaining: 23d 22h 24m
Buy It Now for only: $289.99

SECO 4811 24 AUTO LEVEL SURVEYING TRANSIT IN CASE EX+ CONDITION
SECO 4811 24 AUTO LEVEL SURVEYING TRANSIT IN CASE EX+ CONDITION
$159.99
Time Remaining: 28d 11h 24m
Buy It Now for only: $159.99

Surveyors Transit
Surveyors Transit
$120.00
Time Remaining: 28d 15h 53m
Buy It Now for only: $120.00

WILD HEERBRUGG T2 MILITARY THEODOLITE WITH CASE CLEAN SURVEYORS TRANSIT
WILD HEERBRUGG T2 MILITARY THEODOLITE WITH CASE CLEAN SURVEYORS TRANSIT
$950.00
Time Remaining: 29d 12h 44m
Buy It Now for only: $950.00


Tags: , , , , , , , , ,