Perimeter of a Polygon
Perimeter of a Rectangle
Perimeter of A Square
Unknown Length
100

A triangle has sides with lengths 5 in., 5 in., and 7 in. What is the perimeter of the triangle?

17 in.

100

If the length of a rectangle is 4 in. and the width is 6 in., what is the perimeter?

20 in.

100

If the length of one side of a square is 10 in., what is the perimeter of the square?

40 in.

100

A quadrilateral has sides of 10 cm, 7 cm, 12 cm and  ___cm. Find x if the perimeter is 40cm.

11 cm

200

A pentagon has sides with lengths of 27 ft, 22 ft, 13 ft, 31 ft, and 19 ft. What is the perimeter of the pentagon?

112 ft

200

If the length of a rectangle is 10 cm and the width is 7 cm, what is the perimeter?

34 cm

200

If the length of one side of a square is 25cm, what is the perimeter of the square?

100 cm

200

A pentagon has sides of 6 in, 5 in, 3 in, 2 in, and x in. Find x if the perimeter is 22 in.


6 in.

300

A hexagon has sides with lengths of 100 cm, 200 cm, 300 cm, 300 cm, 200 cm, and 100 cm. What is the perimeter of the hexagon?

1,200 cm

300

If the length of a rectangle is 25 yd and the width is 50 yd, what is the perimeter?

150 yd

300

If the length of one side of a square is 3yd, what is the perimeter of the square?

12 yd

300

A quadrilateral has sides of 150 yd, x yd, 275 yd and 65 yd. Find x if the perimeter is 555 yd.


65 yd

400

A regular octagon has a side of 5 yd. What is the perimeter of the regular octagon?

40 yd

400

If the length of a rectangle is 125 ft and the width is 75 ft, what is the perimeter?

400 ft

400

If the perimeter of a square is 40 ft, what is the length of each side?

10 ft

400

A hexagon has sides of 6 m, 6 m, 6 m, 6 m, x m and 6 m Find x if the perimeter is 36 m.


6 m

500

A regular decagon has a side of 8 cm. What is the perimeter of the regular decagon?

80 cm

500

If the length of a rectangle is 200 mi and the width is 500 mi, what is the perimeter?

1,400 mi

500

If the perimeter of a square is 16 cm, what is the length of each side?

4 cm

500

A quadrilateral has sides of x ft, 186 ft, 201 ft and 158 ft. Find x if the perimeter is 764 ft.

219 ft