CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products [www.cadforum.cz] ARKANCE | CONTACT - CZ | SK | EN | DE
Over 1.095.000 registered users (EN+CZ). AutoCAD tips, Inventor tips, Revit tips. Try the new precise Engineering calculator. New AutoCAD 2026 commands and variables.
RSS channel - CAD tips RSS tips
RSS discussions

Discussion Discussion forum

?
CAD discussions, advices, exchange of experience

CAD Forum - Homepage CAD discussion forum - ask any CAD-related questions here, share your CAD knowledge on AutoCAD, Inventor, Revit and other Autodesk software with your peers from all over the world. To start a new topic, choose an appropriate forum.

Please abide by the rules of this forum.
This is a peer-to-peer forum. The forum doesn't replace the official direct technical support provided by ARKANCE for its customers.
How to post questions: register or login, go to the specific forum and click the NEW TOPIC button.
  FAQ FAQ  Forum Search Search  Events Events  Register Register  Login Login

Topic Closedtry this riddle!
 Post Reply Post Reply
Author
  Topic Search Topic Search  Topic Options Topic Options
Roska View Drop Down
Newbie
Newbie


Joined: 23.Nov.2011
Location: Norway
Using: AutoCAD LT 2012
Status: Offline
Points: 1 		Direct Link To This Post Topic: try this riddle!
    Posted: 23.Nov.2011 at 13:13

The box and ladder riddle.

Place a 1 by 1 meter box (represented by a square on your 2D drawing) on the floor, against the wall (represented by a horizontal and a vertical line say 8 meters long) Place a 5 meter long ladder on the floor and against the wall so that the ladder touches the corner of the box. How high does the ladder reach up the wall? 

Back to Top
John Connor View Drop Down
Senior Member
Senior Member


Joined: 01.Feb.2011
Location: United States
Using: AutoCAD 2018
Status: Offline
Points: 7175 		Direct Link To This Post Posted: 24.Nov.2011 at 01:07
It reaches only as high as it has to.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>
Back to Top
CAD library View Drop Down
Groupie
Groupie


Joined: 20.Jul.2010
Location: Philippines
Using: Autocad 2009
Status: Offline
Points: 20 		Direct Link To This Post Posted: 25.Nov.2011 at 20:39
It reaches only as high as it has to??? is it the answer???
=)
HVAC Design - 2D Details and Schedules

CAD Drawings 2D Construction Details
Back to Top
CAD library View Drop Down
Groupie
Groupie


Joined: 20.Jul.2010
Location: Philippines
Using: Autocad 2009
Status: Offline
Points: 20 		Direct Link To This Post Posted: 25.Nov.2011 at 20:45
not less than 5m.
=)
HVAC Design - 2D Details and Schedules

CAD Drawings 2D Construction Details
Back to Top
John Connor View Drop Down
Senior Member
Senior Member


Joined: 01.Feb.2011
Location: United States
Using: AutoCAD 2018
Status: Offline
Points: 7175 		Direct Link To This Post Posted: 26.Nov.2011 at 00:22
Maybe I'm missing the point of posting a riddle to a CAD Help site.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>
Back to Top
heinsite View Drop Down
Senior Member
Senior Member


Joined: 05.Feb.2009
Location: United States
Using: AutoCAD 2014
Status: Offline
Points: 640 		Direct Link To This Post Posted: 26.Nov.2011 at 08:00
There are two answers to this question because of how you can lean the ladder against the box, floor, and wall.  Either the ladder reaches 1.26m above the floor, or 4.84m above the floor. 

But John is correct.  This is not a CAD problem  Short of brute force trial and error one can only solve this using algebra and trigonometry.  And even then, it's not a trivial solution.
Dave Hein, P.E.
Hawaii District Engineer
Kona International Airport
AutoCAD Certified Professional
Autodesk Expert Elite
Back to Top
CAD library View Drop Down
Groupie
Groupie


Joined: 20.Jul.2010
Location: Philippines
Using: Autocad 2009
Status: Offline
Points: 20 		Direct Link To This Post Posted: 26.Nov.2011 at 18:23
:) I agree
=)
HVAC Design - 2D Details and Schedules

CAD Drawings 2D Construction Details
Back to Top

Related CAD tips:


 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0,137 seconds.
CADforum
CADforum
Tips and tricks, support, utilities, help, discussions on AutoCAD, LT, Inventor, Revit, Map, Civil 3D, 3ds Max, Fusion, Forma, Vault, PowerMill and other Autodesk software (community support by ARKANCE). See About CADforum.
Copyright © 2025 | Advertise with us | Online privacy
ARKANCE - Autodesk Platinum Partner & Training Center & Services Partner
CONTACT:
webmaster.cz@arkance.world | tel. +420 910 970 111
FB LN TW YT TW Blog RSS
.
TOPlist