Calculating Perimeter of Shapes

If you want to know how far a race car travels around a track, what do you need to find?

• The car's speed

• The track's area

• The track's perimeter

• The number of cars

What does "perimeter" mean?

• The space inside a shape

• The distance around a shape

• The number of sides a shape has

• The color of a shape

How do you find the perimeter of any shape?

• Multiply the longest side by 2

• Add all the side lengths together

• Count the number of corners

• Divide the shape into smaller pieces

A shape has sides of 5 cm, 3 cm, 5 cm, and 3 cm. What is its perimeter?

• 8 cm

• 10 cm

• 13 cm

• 16 cm

A triangle has three sides, each 10 cm long. What is its perimeter?

• 10 cm

• 20 cm

• 30 cm

• 40 cm

What does "cm" stand for when measuring length?

• Car meters

• Count marks

• Centimeters

• Circle measurement

What does "yd" stand for when measuring length?

• Yellow dots

• Yard

• Your distance

• Young dog

A square has four sides, and each side is 1 yard long. What is the perimeter of the square?

• 1 yard

• 2 yards

• 3 yards

• 4 yards

What does "m" stand for when measuring length?

• Miles

• Meters

• Minutes

• Marks

A rectangle has two long sides that are 3 meters each and two short sides that are 1 meter each. What is its perimeter?

• 4 meters

• 6 meters

• 8 meters

• 10 meters