Math Antics - Perimeter

What does the term 'perimeter' refer to in geometry?

• The volume of a shape

• The number of sides of a shape

• The area inside a shape

• The distance around a shape

Which units could be used to measure the perimeter of a shape?

• Centimeters

• Cubic meters

• Kilometers

• Square meters

How do you calculate the perimeter of a rectangle with sides of 5m and 10m?

• 2*(5 + 10) = 30m

• 5 + 10 = 15m

• 5 * 10 = 50m

• 5 + 5 + 10 + 10 = 30m

What is the perimeter of a regular hexagon with each side measuring 4 cm?

• 6 * 4 = 24 cm

• 4 + 4 = 8 cm

• 4 * 6 = 24 cm

• 12 * 2 = 24 cm

How can you find the missing side lengths in an irregular polygon if some lengths are known?

• Guess the lengths

• Ask a friend

• Measure with a ruler

• Use known lengths to calculate