web
2.0
calc
Register
Login
Information
This feature requires your approval of cookies
You can approve cookies in the notification bar at the top of this window
Username
Password
Login
forgot your password?
Home
Forum
^{+0}
Widgets
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Post New Answer
All Questions
^{+0}
Pythagoras and Bearings
0
287
1
A square tablecloth has a diagonal measurement of 130cm.
What is the length of one side?
Guest
Mar 12, 2012
#1
+3077
0
c^2=a^2+b^2
let a=b:
c^2=a^2+a^2 = 2a^2
c^2 = 2a^2
c^2/2 = a^2
sqrt( (c^2)/2 ) = a
[input]sqrt( (1.3^2)/2 )[/input]
a=0.91923881554251 (length of one side)
test:
[input]sqrt(0.91923881554251^2+0.91923881554251^2)[/input]
admin
Mar 12, 2012
Post New Answer
9 Online Users
Top Users
+92623
Melody
moderator
+86859
CPhill
moderator
+26716
Alan
moderator
+19480
heureka
+17736
geno3141
+12516
ElectricPavlov
+9435
Omi67
moderator
+7318
asinus
moderator
+7065
hectictar
+6979
MaxWong
+3077
admin
administrator
Sticky Topics
New Privacy Policy, May 2018
Let ABC be any triangle. Equilateral triangles BCX, ACY, and BAZ are constructed such that none of these triangles overlaps triangle ABC.
Geometry Thread
PUZZLES
LaTex Coding
How to upload a picture
https://www.desmos.com/calculator/bsh9ex1zxj
@ Is PROCRASTINATION a problem for you ?
@@ Interest questions.
@ Site full of printable puzzles.
Historical post!
@ Instructions on uploading pictures
Number Puzzles
What is happening? Wrap #4
Great Questions to Learn From 2
abs() on this calculator
END OF WHATEVER: WRAP #3
End of Day Wrap #2
Site Development
Great Answers to Learn From
New Privacy Policy
We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our
cookie policy
and
privacy policy
.
OK