<em>Answer:</em>
<em />
<em>1.) 4.87831517751
</em>
<em>2.) 12.124355653
</em>
<em />
<em>Step-by-step explanation:</em>
<em>A.)</em>
<em>The diagonal is 4.87831517751 FT long. </em>
<em>The diagonal equals the square root of the width squared plus the height squared.</em>
<em>Square root of 2 is 1.41421356237
</em>
<em>Square root of 12 is 3.46410161514
</em>
<em>3.46410161514 + 1.41421356237 = 4.87831517751
.</em>
<em>B.) </em>
<em>The diagonal is 12.124355653 CM long. </em>
<em>The main diagonal of any cube can be found by multiplying the length of one side by the square root of 3.</em>
<em>Square root of 3 is 1.73205080757</em>
<em>1.73205080757 x 7 = 12.124355653
</em>
