Perimeter With Unknown

Find the unknown side length if the perimeter is 30 cm.

• 5 cm

• 4 cm

• 8 cm

• 10 cm

Find the unknown side length if the perimeter is 29 cm.

• 10 cm

• 8 cm

• 6 cm

• 7 cm

Find the unknown side length if the perimeter is 89 inches.

• 15 in.

• 17 in.

• 20 in.

• 13 in.

This shape has a missing side length labeled with a letter. The perimeter of the shape is labeled inside. Find the unknown side length for each shape.

Find the unknown side length if the perimeter is 30 cm.

• 5 cm

• 4 cm

• 8 cm

• 10 cm

The distance around a shape is its .

(a)  

• Perimeter

• Area

Tags

4.5.D

The perimeter of the shape is 24 meters. Find the unknown side length, w.

• 4

• 21

• 3

• 7

Find the unknown side length if the perimeter is 29 cm.

• 10 cm

• 6 cm

• 8 cm

• 7 cm

The perimeter of the shape is 24 meters. Find the unknown side length, w.

• 4

• 21

• 3

• 7

​ ​ (a)   a linear measurement of the distance around the outer edge of a figure

• perimeter

• area

• length