







Form a square and a triangle from a wire 
20200408 

Raahim pose la question : 2. A 2 meter piece of wire is cut into two pieces and once piece is bent into a square and the other is bent into an equilateral triangle. Where should the wire cut so that the total area enclosed by both is minimum and maximum? Penny Nom lui répond. 





The area of a rectangle 
20160108 

ranjan pose la question : if we make a rectangle with a 100cm of wire, then its area will be? Penny Nom lui répond. 





A wireless fence 
20150418 

Dave pose la question : I'm buying a wireless fence to keep my pet in my yard. It has a half acre range. In a straight line how far would that be? Penny Nom lui répond. 





A wire spiral 
20120107 

Pinar pose la question : I am trying to help my daughter with very challenging maths questions which sometimes I get stuck
If someone help me with one of them I would appreciate it.
Jane is making a spiral out of wire. She bends the wire after 1 cm, then bends the wire
after 2cm, then 3cm and continues in this manner. After 4 bends she used 15 cm of wire
For each bend how many cm wire was used? After 6 bends how many cm wire will she have used?
How many bends will she have made if she uses 66 cm of wire?
I would appreciate if somebody would help me with this.
Thank you!
Pinar Penny Nom lui répond. 





A square and a circle 
20080720 

kobina pose la question : 4 ft of a wire is to be used to form a square and a circle. how much of the wire is to be used for the square and how much should be used for the square in order to enclose the maximum total area Harley Weston lui répond. 





Finding the legth of a guy wire 
20061015 

Aubrey pose la question : a radio tower 500 feet high is located on the side of a hill with an inclination to the horizontal of 5 degrees. how long should two guy wires be if they are to connect to the top of the tower and be secured at two points 100 feet directly above and directly below the base of the tower? Stephen La Rocque lui répond. 





A copper sphere 
20040912 

Irfan pose la question : The radius of a copper sphere is 3cm. If a wire of 0.4 diameter is drawn by melting it,what is the length of this wire? Penny Nom lui répond. 

