Doubled Inch Dimensions Perimeter

Directions

Measure the blue length and red width of the rectangle to the nearest ¼ inch.

Double both measurements.

Add these sums to find the rectangle’s perimeter.

​

Measure blue Length

​

L = inches

Measure red Width

​

W = inches

Measure 2 L =

​

Measure 2 W =

Check Doubling

erimeter = 2L + 2W

Double W = 2W

Double L = 2 L

+

+

Perimeter =

​

​

Add 2L + 2W

ws1

Measure blue Length

​

L = inches

Measure red Width

​

W = inches

Measure 2L =

​

Measure 2W =

Check Doubling

erimeter = 2L + 2W

Double W = 2W

Double L = 2L

+

+

Perimeter =

​

​

Add 2L + 2W

Ws 2

Doubled Inch Dimensions Perimeter

Directions

Measure the blue length and red width of the rectangle to the nearest ¼ inch.

Double both measurements.

Add these sums to find the rectangle’s perimeter.

​

Blue Length

​

L = 7 inches

Red Width

W = 3 inches

​

Not to scale!

​

2

4

1

4

erimeter = 2L + 2W

Double W = 2W

Double L = 2L

+

+

Perimeter =

​

​

Add 2L + 2W

Simplify

Ws3

Doubled Inch Dimensions Perimeter

Directions

Measure the blue length and red width of the rectangle to the nearest ¼ inch.

Double both measurements.

Add these sums to find the rectangle’s perimeter.

​

Blue Length

​

L = 6 inches

Red Width

W = 5 inches

​

1

2

1

2

erimeter = 2L + 2W

Double W = 2W

Double L = 2L

+

+

Perimeter =

​

​

Add 2L + 2W

Simplify

Ws 4

Doubled Inch Dimensions Perimeter

Directions

Measure the blue length and red width of the rectangle to the nearest ¼ inch.

Double both measurements.

Add these sums to find the rectangle’s perimeter.

​

Blue Length

​

L = 6 inches

Red Width

W = 5 inches

​

erimeter = 2L + 2W

Double W = 2W

Double L = 2L

+

+

Perimeter =

​

​

Add 2L + 2W

1

2

3

4

Simplify

Ws 5

Doubled Inch Dimensions Perimeter

Directions

Measure the blue length and red width of the rectangle to the nearest ¼ inch.

Double both measurements.

Add these sums to find the rectangle’s perimeter.

​