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# Optimal Pie Cutting Watch

1. If a rectangular pie is cut by h horizontal cuts and v vertical cuts, the total number of pieces obtained will be (h+1)(v+1).

I have no idea how to reach that solution. Could someone please help me with explaining why that is true?
2. draw it out and it will help. imagine h=1, that means with 1 cut you will have created 2 pieces
the same goes for v=1. If you cut the pie in v one time, you will have also created 2 pieces (or v+1 pieces)
You can try it out with different values of v and h to get your head round it; and drawing it out would help
This means that the number of pieces= number of cuts + 1
ie. v+1 and h+1

Now finding out the number of pieces is like working out an area, so you multiply the number of pieces on the h "axis" by those on the v axis. ie. (h+1)(v+1)
3. (Original post by Nayzar)
draw it out and it will help. imagine h=1, that means with 1 cut you will have created 2 pieces
the same goes for v=1. If you cut the pie in v one time, you will have also created 2 pieces (or v+1 pieces)
You can try it out with different values of v and h to get your head round it; and drawing it out would help
This means that the number of pieces= number of cuts + 1
ie. v+1 and h+1

Now finding out the number of pieces is like working out an area, so you multiply the number of pieces on the h "axis" by those on the v axis. ie. (h+1)(v+1)
Ah, got it now. Thank you!

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