For 11, Figure B has the greatest perimeter. For 12, Figure C has an area of 108 square centimeters. For 13, Figure A has an area of 40 square feet.
The volume of the cube is (8 x 8 x 8) = 8³ = <em>512 cubic inches</em> (exact)
Area of a square= l²
= 8×8 = 64 in²
Area of a circle= πr²
= π × 4²
= 50.3 in²
Difference = 64 - 50.3 = 13.7 in²
Negative because if you mark it on the graph they go in a downwards line which would be a negative slope on the graph :)
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