Cube cut

The cube ABCDA'B'C'D ' has an edge of 12cm. Calculate the area of diagonal cut B DD'B '.

Correct result:

S =  203.6468 cm2

Solution:

a=12 cm u1=2⋅ a=2⋅ 12=12 2 cm≐16.9706 cm  S=u1⋅ a=16.9706⋅ 12=144 2=203.6468 cm2

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