Jump to content
BrainDen.com - Brain Teasers
  • 0
Sign in to follow this  
Avijit

Please help to solve

Question

2 answers to this question

Recommended Posts

  • 0
Spoiler

Label the square ABCD clockwise starting at the upper left corner.

Put Y next to the angle of 70 (I will use both X and Y as angles and as points).

BAY=180-90-70=20
DAX=90-20-45=25

Rotate ABY over AY.
Rotate ADX over AX.

ABY and ADX will exactly cover AXY - proof is left to the reader as exercise.

-> X=180-45--70=65

 

Edited by harey
Corrected a germanism.
  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...