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

=]

 K  E  Construction Surveyors TRANSIT with CASE
K E Construction Surveyors TRANSIT with CASE
$239.99
Time Remaining: 10h 48m
Buy It Now for only: $239.99

Dietzgen Surveyors Transit Level 65403
Dietzgen Surveyors Transit Level 65403
$199.99
Time Remaining: 1d 2h 11m
Buy It Now for only: $199.99

Antique Vintage Transit Bostroms No 2 Surveyors Level Cast Iron Brass Scope
Antique Vintage Transit Bostroms No 2 Surveyors Level Cast Iron Brass Scope
$59.00
Time Remaining: 1d 13h 17m
Buy It Now for only: $59.00

K  E  Construction Surveyors TRANSIT with CASE
K E Construction Surveyors TRANSIT with CASE
$100.00
Time Remaining: 1d 18h 34m
Buy It Now for only: $100.00

VINTAGE BRASS SURVEYORS TRANSIT LEVEL GERMANY R FUESS BERLIN STEGLITZ
VINTAGE BRASS SURVEYORS TRANSIT LEVEL GERMANY R FUESS BERLIN STEGLITZ
$124.95
Time Remaining: 1d 23h 43m
Buy It Now for only: $124.95

BRUNTON 5008 POCKET TRANSIT SURVEYORS COMPASS SURVEYING FORESTRY
BRUNTON 5008 POCKET TRANSIT SURVEYORS COMPASS SURVEYING FORESTRY
$299.99
Time Remaining: 2d 1h 48m
Buy It Now for only: $299.99

SOKKIA DT6 DIGITAL THEODOLITE TRANSIT TOPCON NIKON SPECTRA SURVEYORS
SOKKIA DT6 DIGITAL THEODOLITE TRANSIT TOPCON NIKON SPECTRA SURVEYORS
$749.00
Time Remaining: 2d 9h 59m
Buy It Now for only: $749.00

2 Vintage KE Keuffel Esser Surveyors Transit and Case No 75 0300
2 Vintage KE Keuffel Esser Surveyors Transit and Case No 75 0300
$40.00
Time Remaining: 2d 22h 9m
Buy It Now for only: $89.00

K  E PARAGON 20 SECOND SURVEYORS MOUNTAIN TRANSIT MODEL 74 0040
K E PARAGON 20 SECOND SURVEYORS MOUNTAIN TRANSIT MODEL 74 0040
$350.00
Time Remaining: 3d 11h 24m
Buy It Now for only: $460.00

VTG Tripod Transit Base  Universal Pan Head Surveyors 360 Level w Wood Case
VTG Tripod Transit Base Universal Pan Head Surveyors 360 Level w Wood Case
$449.95
Time Remaining: 8d 21h 8m
Buy It Now for only: $449.95

KEUFFEL  ESSER COMPANY ANTIQUE BRASS SURVEYORS TRANSIT
KEUFFEL ESSER COMPANY ANTIQUE BRASS SURVEYORS TRANSIT
$199.99
Time Remaining: 14d 20h 31m
Buy It Now for only: $199.99

David White Meridian 830D Surveyors Level Transit Case
David White Meridian 830D Surveyors Level Transit Case
$150.00
Time Remaining: 15d 3h 15m
Buy It Now for only: $150.00

David White Meridian Model 8080 Surveyors Level Transit with Case PARTS VINTAGE
David White Meridian Model 8080 Surveyors Level Transit with Case PARTS VINTAGE
$56.25
Time Remaining: 18d 6h 53m
Buy It Now for only: $56.25

WILD HEERBRUGG T2 MILITARY THEODOLITE WITH CASE CLEAN SURVEYORS TRANSIT
WILD HEERBRUGG T2 MILITARY THEODOLITE WITH CASE CLEAN SURVEYORS TRANSIT
$949.95
Time Remaining: 20d 4h 11m
Buy It Now for only: $949.95

SOKKIA DT600 DIGITAL THEODOLITE TRANSIT TOPCON NIKON SPECTRA SURVEYORS
SOKKIA DT600 DIGITAL THEODOLITE TRANSIT TOPCON NIKON SPECTRA SURVEYORS
$1,095.00
Time Remaining: 20d 11h 11m
Buy It Now for only: $1,095.00

BRANDIS  SONS SURVEYORS TRANSIT+ TRIPOD+ WOODEN CASE  ACCESSORIES
BRANDIS SONS SURVEYORS TRANSIT+ TRIPOD+ WOODEN CASE ACCESSORIES
$949.02
Time Remaining: 24d 23h 21m
Buy It Now for only: $949.02

 vintage SOKKISHA  SURVEYORS TRANSIT  TOKYO 8530
vintage SOKKISHA SURVEYORS TRANSIT TOKYO 8530
$650.00
Time Remaining: 25d 11h 45m
Buy It Now for only: $650.00

Keuffel  Esser KE 215271 Vintage Transit Surveyors Equipment Working
Keuffel Esser KE 215271 Vintage Transit Surveyors Equipment Working
$99.99
Time Remaining: 26d 2h 17m
Buy It Now for only: $99.99

Rare vintage SOKKISHA SURVEYORS TRANSIT TOKYO Japan Case And accessories
Rare vintage SOKKISHA SURVEYORS TRANSIT TOKYO Japan Case And accessories
$399.00
Time Remaining: 27d 4h 41m
Buy It Now for only: $399.00

2 Old Surveyors Transit Tripods Berger and Vintage Rusty Metal Yellow
2 Old Surveyors Transit Tripods Berger and Vintage Rusty Metal Yellow
$155.50
Time Remaining: 27d 20h 12m
Buy It Now for only: $155.50

AT 24 AUTO LEVEL BUILDERS TRANSIT AUTOMATIC LEVEL SURVEYING CONSTRUCTION
AT 24 AUTO LEVEL BUILDERS TRANSIT AUTOMATIC LEVEL SURVEYING CONSTRUCTION
$149.00
Time Remaining: 28d 10h 36m
Buy It Now for only: $149.00


Tags: , , , , , , , , ,