Practicing Success
(7, 9, 11), (8, 10, 12), ? |
(6, 18, 12) (5, 7, 10) (6, 12, 18) (3, 6, 11) |
(6, 12, 18) |
\(\frac{I + III}{2}\) = \(\frac{7 + 11}{2}\) = 9 \(\frac{I + III}{2}\) = \(\frac{8 + 12}{2}\) = 10 Similarly, \(\frac{I + III}{2}\) = \(\frac{6 + 18}{2}\) = 12
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