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

=]

Rare vintage SOKKISHA SURVEYORS TRANSIT TOKYO Japan Case And accessories
Rare vintage SOKKISHA SURVEYORS TRANSIT TOKYO Japan Case And accessories
$399.00
Time Remaining: 1d 2h 56m

Transit Surveyors Level By Path Instruments
Transit Surveyors Level By Path Instruments
$50.00
Time Remaining: 2d 1h 50m

David White 8 Inches and Feet Grade Stick Transit Surveyors Rod Wood
David White 8 Inches and Feet Grade Stick Transit Surveyors Rod Wood
$15.79
Time Remaining: 2d 16h 50m

Antique Surveyors Transit with wooden box
Antique Surveyors Transit with wooden box
$250.00
Time Remaining: 2d 20h 26m
Buy It Now for only: $250.00

Lietz Surveyors Transit Hand Level Construction 8043 50 with Holster
Lietz Surveyors Transit Hand Level Construction 8043 50 with Holster
$4.95 (2 Bids)
Time Remaining: 3d 1h 59m

G  B JUNIOR TROY NY ANTIQUE BRASS SURVEYORS TRANSIT ORIGINAL USCE TRIPOD
G B JUNIOR TROY NY ANTIQUE BRASS SURVEYORS TRANSIT ORIGINAL USCE TRIPOD
$62.01 (6 Bids)
Time Remaining: 3d 19h 32m

 K  E  Construction Surveyors TRANSIT with CASE
K E Construction Surveyors TRANSIT with CASE
$239.99
Time Remaining: 4d 4h 23m
Buy It Now for only: $239.99

Dietzgen Surveyors Transit Level 65403
Dietzgen Surveyors Transit Level 65403
$199.99
Time Remaining: 4d 19h 47m
Buy It Now for only: $199.99

NEW BRUNTON 5008 POCKET TRANSIT SURVEYORS COMPASS SURVEYING FORESTRY
NEW BRUNTON 5008 POCKET TRANSIT SURVEYORS COMPASS SURVEYING FORESTRY
$299.99
Time Remaining: 5d 19h 24m
Buy It Now for only: $299.99

Vintage Seiler Surveyors Transit level
Vintage Seiler Surveyors Transit level
$99.95
Time Remaining: 6d 1h 4m
Buy It Now for only: $149.95

Vintage KE Keuffel Esser Surveyors Transit and Case No 75 0300
Vintage KE Keuffel Esser Surveyors Transit and Case No 75 0300
$50.00
Time Remaining: 6d 14h 52m
Buy It Now for only: $99.00

WILD HEERBRUGG T2 MILITARY THEODOLITE WITH CASE CLEAN SURVEYORS TRANSIT
WILD HEERBRUGG T2 MILITARY THEODOLITE WITH CASE CLEAN SURVEYORS TRANSIT
$807.50
Time Remaining: 6d 21h 18m
Buy It Now for only: $807.50

vintage surveyors transit
vintage surveyors transit
$275.00
Time Remaining: 7d 4h 21m
Buy It Now for only: $500.00

VINTAGE SURVEYORS TRANSIT TRIPOD MODEL 78 0030 KEUFFEL  ESSER KE USA
VINTAGE SURVEYORS TRANSIT TRIPOD MODEL 78 0030 KEUFFEL ESSER KE USA
$125.00
Time Remaining: 10d 14h 17m
Buy It Now for only: $125.00

David White Meridian Model 8080 Surveyors Level Transit with Case
David White Meridian Model 8080 Surveyors Level Transit with Case
$75.00
Time Remaining: 17d 44m
Buy It Now for only: $75.00

David White Meridian 830D Surveyors Level Transit Case
David White Meridian 830D Surveyors Level Transit Case
$150.00
Time Remaining: 18d 20h 50m
Buy It Now for only: $150.00

SOKKIA DT600 DIGITAL THEODOLITE TRANSIT TOPCON NIKON SPECTRA SURVEYORS
SOKKIA DT600 DIGITAL THEODOLITE TRANSIT TOPCON NIKON SPECTRA SURVEYORS
$1,095.00
Time Remaining: 24d 4h 47m
Buy It Now for only: $1,095.00

BRANDIS  SONS SURVEYORS TRANSIT+ TRIPOD+ WOODEN CASE  ACCESSORIES
BRANDIS SONS SURVEYORS TRANSIT+ TRIPOD+ WOODEN CASE ACCESSORIES
$1,999.00
Time Remaining: 28d 16h 56m
Buy It Now for only: $1,999.00

 vintage SOKKISHA  SURVEYORS TRANSIT  TOKYO 8530
vintage SOKKISHA SURVEYORS TRANSIT TOKYO 8530
$650.00
Time Remaining: 29d 5h 21m
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: 29d 19h 53m
Buy It Now for only: $99.99


Tags: , , , , , , , , ,