Question

each square on the grid is 1 unit square. what is the perimeter of the shaded figure? units

Explanation:

Step1: Count outer - side lengths

Count the number of unit - length sides that form the outer boundary of the shaded figure.

Step2: Sum up the lengths

Each side of a unit square is 1 unit long. By counting, we find there are 20 such unit - length sides on the outer boundary of the shaded figure.

Answer:

20