Find the length of AG. You may need an extra line to help you. Round the answer to 3 decimal places.
Try out the full set - Cuboid issues
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The space diagonal is given by d = a 2 + b 2 + c 2 .
A G = 1 2 2 + 8 2 + 2 0 2 = 6 0 8 = 2 4 . 6 6 5 8