### Home > MC1 > Chapter 3 > Lesson 3.2.3 > Problem 3-54

Think about the Base Ten blocks. Using

To review the concept of Base Ten blocks, refer to the Math Notes box in Lesson 3.2.1.

A reminder: The perimeter is the sum of a shape's sides. Be sure to make the longer sides of the blocks exposed to increase the perimeter.

The blocks should be in a long line for the perimeter to be its greatest. The perimeter is

Use the blocks in the eTool below and try to arrange them in a shape with the largest perimeter.

Click the link at right for the full version of the eTool: MC1 3-54 HW eTool