Understanding Perimeter

What does the term 'perimeter' refer to?

• The area inside a shape

• The distance around a shape

• The length of one side of a shape

• The number of sides a shape has

Why is it important to know the perimeter when building a fence?

• To calculate the area inside the fence

• To know how many fence pieces to buy

• To determine the height of the fence

• To calculate the weight of the fence

What is a polygon?

• A shape with curved sides

• An open shape with no sides

• A closed shape with straight sides

• A three-sided shape

Tags

CCSS.2.G.A.1

How do you calculate the perimeter of a rectangle?

• Add up all the sides

• Multiply all the sides by two

• Multiply the length by the width

• Divide the length by the width

Tags

CCSS.4.MD.A.3

What unit of measurement should you use for perimeter?

• No unit is necessary

• Always use inches

• Always use centimeters

• The unit given in the problem

What is the difference between perimeter and area?

• There is no difference

• Perimeter is the inside space, and area is the outside distance

• Perimeter is the outside distance, and area is the inside space

• Area is measured in inches, and perimeter in centimeters

How can you find the perimeter of a square if you know one side?

• Multiply the side by two

• Divide the side by four

• Add the side to itself

• Multiply the side by four

Tags

CCSS.4.MD.A.3

If a rectangle has a top side of 6 cm and a right side of 4 cm, what is its perimeter?

• 20 cm

• 24 cm

• 10 cm

• 30 cm

Tags

CCSS.4.MD.A.3

Can you use multiplication to find the perimeter of any polygon?

• Yes, if all sides are of equal length

• No, multiplication is never used

• Yes, but only for triangles

• No, you should always use addition

Tags

CCSS.3.MD.D.8

How many fence pieces are needed for the cornfield?

• 12 pieces

• 14 pieces

• 16 pieces

• 10 pieces

Tags

CCSS.4.MD.A.2