Perimeter of Polygons

Calculate the perimeter of the pentagon

• a) 32cm

• b) 34cm

• c) 36cm

• d) 38cm

Calculate the perimeter of the pentagon.

• 22 cm

• 23 cm

• 24 cm

• 25 cm

This irregular polygon has one line of symmetry. Calculate the perimeter of the shape.

• 25 cm

• 34 cm

• 50 cm

• Cannot be determined

This irregular polygon has one line of symmetry. Calculate the perimeter of the shape.

• 400mm

• 200mm

• 40mm

• Cannot be determined

This triangle only has one line of symmetry and its perimeter is 30cm. What is the length of the shortest side?

• 10cm

• 6cm

• 5cm

• 12cm

3) Is there enough information here to work out the perimeter of this shape?

• Yes

• No

1) The perimeter of this playground is 58m. Each side of the playground is a two-digit whole number of metres. What could the lengths of the pineapple and strawberry be?

• A) 12m and 17m

• B) 14m and 15m

• C) 16m and 13m

• D) 18m and 11m

• E) 19m and 10m

Are the perimeters of these two irregular polygons the same? Prove it.

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Which of the following statements is true about irregular polygons?

• Irregular polygons can have the same perimeter but different shapes.

• Irregular polygons must have equal sides and angles.

• Irregular polygons cannot have the same perimeter.

• Irregular polygons are always convex.

Which of these shapes is the odd one out?

• A

• B

• C

• D