Understanding Area Using Addition

What is the primary purpose of using arrays in calculating area?

• To help find the total area of a shape

• To change the shape's dimensions

• To color the boxes differently

• To make the shapes look more organized

How many total boxes are there in the array when adding by columns?

• 20

• 22

• 18

• 16

What is the result when adding the boxes by rows?

• 18

• 20

• 22

• 24