Create a free account!

When you create an account, we'll save your progress. Plus, you'll have access to some cool tools, like reports, assignments, gradebook, and awards.

Ivor has many ways to place 4 identical 3 cm × 3 cm squares together as follow:

Among these figures, compare the perimeters of all the figures. Which figure’s perimeter is the longest? Answer 1, 2, 3, or 4.