<p>What about this one? Page 468 of the Blue Book. </p>
<p>It shows a stepped picture of blocks (1 block, 2 block, 3 blocks, 4 blocks).</p>
<ol>
<li>The figure above shows an arrangement of 10 squares, each with side of length k in inches. The perimeter of each figure is p inches. The area of the figure is a square inches. If p = a, what is the value of k? </li>
</ol>
<p>How would you solve this? Thanks!</p>