Perimeter and Decimal Factoring

Perimeter Basics

100

A square has side length 2x.
👉 Write an expression for the perimeter.

8x

200

A rectangle has length 3y and width y.
👉 Write the perimeter expression.

8y

300

A triangle has sides x, 2x, and 4x.
👉 Write and simplify the perimeter.

7x

Perimeter w/ Fractions

100

A rectangle has length (1/2)x and width (1/4)x.
👉 Write the perimeter expression.

1.5x or 1 (1/2)x

200

A triangle has sides

x+1/3

x

x+2/3

👉 Write the expression for the perimeter.

3x+1

300

A rectangle has length (3/4)m and width (6/8)m. 

Find an expression for the perimeter

3m

Factoring Expressions

100

4x−2(6x−2x)

4x(1-2) = 4x(-1) = -4x

200

0.6t+0.9(t−0.4t)

0.6t(1+0.9) = 0.6t(1.9)

300

1.5y−1.1y+3(0.4y)

0.4y(1+3) = 0.4y(4)