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Area of the border: (18*11) -(12*7) = 114 square cm

Q: A picture12 by 7 cm is framed on a piece of colored board 18 cm by 11cm . what area of the board can be seen?

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piece a has a greater length than piece b (a>b)

If the cut is parallel to the long dimension, then each piece is 40 inches long, but its width is 1/2 of the original board's width. If the cut is parallel to the short dimension, then the width is preserved, and each piece is 20 inches long. If the cut is parallel to to the flat, then each piece is 40 inches long and has the original width, but is only 1/2 the thickness of the original board.

x the length of the shorter piece 3·x the length of the longer piece x + 3·x the length of the whole board = 4·x = 76" x = 76" / 4 = 19.

Math Move or Roaming Numeral

Folded up in the back board. It is the thin cardboard tri-fold piece. I found the answer on Walmart's Web site.

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