We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
119
2
avatar+8 

sid takes a sheet of paper and cuts from one corner, making two triangles. if the length of the cut is 13 inches and the paper is 9 inches long, what is the width of the sheet of paper.

 Dec 4, 2018
 #1
avatar+100439 
+1

The cut must be a diagonal cut if two triangles are formed

 

The 13 inch cut  forms the hypotenuse of aright triangle....and the length of the paper forms one of the legs

 

The width is given by

 

√ [ 13^2 - 9^2 ]    =  √ [ 169 - 81 ]  =   √ 88   ≈  9.38 inches

 

 

cool cool cool

 Dec 4, 2018
 #2
avatar+644 
0

Use the Pythagorean Theorem:

\(9^2+x^2=13^2, 81+x^2=169, x^2=88, x=\sqrt{88}, x=2\sqrt{22}\)

 

You are very welcome!

:P

 Dec 4, 2018

6 Online Users

avatar