### Home > MC2 > Chapter 3 > Lesson 3.1.3 > Problem 3-29

3-29.

Find the perimeter of each figure made of algebra tiles below.

Refer to the solutions for 3-20 or the Math Notes box of Lesson 3.1.3.

Remember, the tiny square represents a unit piece, which is a

square.

Refer to the solutions for 3-20 or the Math Notes box of Lesson 3.1.3.

Since part of the side with length

touches the unit square, the side that is included in the calculation of the perimeter is.

Do you understand why the length of one side is labeled?

Refer to the solutions for 3-20 or the Math Notes box of Lesson 3.1.3.