1) d=√1²+2²+2²=√9=3
2)d=√2²+3²+6²=√49=7
3)d=√6²+6²+7²=√121=11
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1) d=√1²+2²+2²=√9=3
2)d=√2²+3²+6²=√49=7
3)d=√6²+6²+7²=√121=11