P.4 Revision of perimeter

What is the definition of perimeter?

• The total length around a closed shape

• The color of the shape

• The size of the shape

• The total space that a 3D object takes up

Which of the following is NOT a closed shape?

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What is the perimeter of the shape?

• 14 cm

• 11 cm

• 12 cm

• 13 cm

Which of the following is the most suitable tool for measuring the perimeter of a fountain?

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What is the perimeter of the coloured shape?

• 15 cm

• 16 cm

• 20 cm

• 22 cm

What is the perimeter of the square?

• 56 m

• 28 m

• 52 m

• 196 m

The perimeter of the square is 64 cm. What is the side length of the square?

• 16 cm

• 14 cm

• 32 cm

• 8 cm

A piece of wire is 120 mm long. Miss Chan bends it to make a square. What is the side length of the square?

• 30 mm

• 480 mm

• 60 mm

• 40 mm

The side length of the square mat is 8 cm. What is its perimeter?

• 16 cm

• 64 cm

• 32 cm

• 36 cm

Miss Chan walks around the square grassland 5 rounds. She walks 60 m in total. What is the side length of the grassland?

• 12 m

• 3 m

• 4 m

• 300 m