KA-0081
about 105sA solid is built from unit cubes. The two pictures show it from above and from the front. What is the smallest number of cubes it could be made of?
Text description of the figure
Two views side by side. The view from above is a solid 2 by 2 square of four cells. The view from the front is a solid 2 by 2 square, so the solid is two columns wide and reaches two cubes high.