The volume is the product of the side lengths which is 1*6*11= 66 mm^3. The surface area is twice the sum of all the possible products of the side lengths, or 2lw+2wh+2hl which is 2(6*11+6*1+11*1) = 166 mm^2 if my mental math is decent.
2/30 in percentage is 6,67%
you must divide first the fraction and multiply by 100
I guess that u can use Pythagorean theorem!:(
Divide both sides by 2
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