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A 6'' by 6'' grid made from 1'' pieces of wire glued together at their ends is shown here. How many pieces of wire would be required to create a similar 10'' by 10'' grid?

https://latex.artofproblemsolving.com/2/5/1/2515356e09f40809d93d332f2cc2074831a6ed15.png

 Jun 13, 2020
 #1
avatar+549 
0

whenever i go to the link all i see is black

 Jun 13, 2020
 #2
avatar+307 
-2

Horizontally, there are 10*10 pieces of wire.

Vertically, there are also 10*10 pieces of wire.

In all, it'll take 100 + 100 = 200 pieces of wire.

 Jun 13, 2020
 #3
avatar+344 
+2

I know 

 Jun 13, 2020
 #4
avatar+344 
+2

200 is wrong

 Jun 13, 2020
 #5
avatar+307 
+1

Oh, sorry! 

There are 10*11 horizontal wires and 10*11 vertical wires.

So 110 + 110 = 220 wires in all.

thelizzybeth  Jun 13, 2020
 #6
avatar+344 
+2

thanks : 220 is the right answer

 Jun 13, 2020

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