Four balances are shown where the two sides of each contain exactly the same amount of weight. The first balance has 4 squares, 1 triangle and 1 ball on the left side, right side has 2 diamonds. The second balance has 1 triangle and 1 square on the left side, 1 ball on the right side. The third balance has 1 triangle and 1 diamond on the left side, 1 ball and 2 squares on the right side. The fourth triangle has 1 diamond, 1 triangle and 1 square on the left side. How many balls are on the right side? Explain/show how this was determined.

1. see earlier post, check it carefully.

posted by bobpursley
2. The total surface area if 3dfigure

posted by lerelat
3. The total surface area if 3D figure

posted by Anonymous
4. The total surface area of 3D figure

posted by Anonymous

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