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

=]

WILD HEERBRUGG T2 MILITARY THEODOLITE WITH CASE CLEAN SURVEYORS TRANSIT
WILD HEERBRUGG T2 MILITARY THEODOLITE WITH CASE CLEAN SURVEYORS TRANSIT
$807.50
Time Remaining: 9h 3m
Buy It Now for only: $807.50

SOKKIA DT600 DIGITAL THEODOLITE TRANSIT TOPCON NIKON SPECTRA SURVEYORS
SOKKIA DT600 DIGITAL THEODOLITE TRANSIT TOPCON NIKON SPECTRA SURVEYORS
$1,095.00
Time Remaining: 16h 33m
Buy It Now for only: $1,095.00

Vintage Surveyors Transit Level in Wood Case USA Berger KE Keuffel Esser
Vintage Surveyors Transit Level in Wood Case USA Berger KE Keuffel Esser
$19.25
Time Remaining: 2d 2h 56m
Buy It Now for only: $34.25

David White 16 Inches and Feet Grade Stick Transit Surveyors Rod Aluminum
David White 16 Inches and Feet Grade Stick Transit Surveyors Rod Aluminum
$29.79 (1 Bid)
Time Remaining: 2d 4h 32m

David White 8 Inches and Feet Grade Stick Transit Surveyors Rod Wood
David White 8 Inches and Feet Grade Stick Transit Surveyors Rod Wood
$19.79
Time Remaining: 2d 4h 35m

LIETZ TRANSIT N010C IN HARD CASE FOR SURVEYORS SOKKISHA NICE CONDITION
LIETZ TRANSIT N010C IN HARD CASE FOR SURVEYORS SOKKISHA NICE CONDITION
$349.00
Time Remaining: 3d 2h 58m

Transit Surveyors Level By Path Instruments
Transit Surveyors Level By Path Instruments
$50.00
Time Remaining: 3d 13h 34m

BRANDIS  SONS SURVEYORS TRANSIT+ TRIPOD+ WOODEN CASE  ACCESSORIES
BRANDIS SONS SURVEYORS TRANSIT+ TRIPOD+ WOODEN CASE ACCESSORIES
$1,999.00
Time Remaining: 5d 4h 42m
Buy It Now for only: $1,999.00

 vintage SOKKISHA  SURVEYORS TRANSIT  TOKYO 8530
vintage SOKKISHA SURVEYORS TRANSIT TOKYO 8530
$650.00
Time Remaining: 5d 17h 7m
Buy It Now for only: $650.00

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 2h 38m
Buy It Now for only: $99.00

 K  E  Construction Surveyors TRANSIT with CASE
K E Construction Surveyors TRANSIT with CASE
$239.99
Time Remaining: 10d 16h 9m
Buy It Now for only: $239.99

Dietzgen Surveyors Transit Level 65403
Dietzgen Surveyors Transit Level 65403
$199.99
Time Remaining: 11d 7h 33m
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: 12d 7h 9m
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
$125.00
Time Remaining: 17d 2h 2m
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: 23d 12h 29m
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: 25d 8h 36m
Buy It Now for only: $150.00

Surveyors Transit
Surveyors Transit
$40.00
Time Remaining: 25d 10h 56m
Buy It Now for only: $40.00


Tags: , , , , , , , , ,