Understanding Perimeter of a Rectangle

This video tutorial by Mr. Jay explains how to find the perimeter of a rectangle. It covers the definition of perimeter and demonstrates two methods for calculating it: adding all side lengths and using the formula 2 times the length plus 2 times the width. Two examples are provided, showing step-by-step calculations. The video emphasizes that the order of adding side lengths does not affect the result and that switching length and width yields the same perimeter.

What is the perimeter of a rectangle with sides measuring 13 yards and 5 yards?

• 40 yards

• 36 yards

• 26 yards

• 18 yards

Tags

CCSS.4.MD.A.3

Which of the following is a correct formula to calculate the perimeter of a rectangle?

• Length + Width

• 2 x Length + 2 x Width

• 2 x (Length + Width)

• Length x Width

Tags

CCSS.3.MD.D.8

If you switch the length and width of a rectangle, what happens to the perimeter?

• It halves

• It becomes zero

• It remains the same

• It doubles

Tags

CCSS.4.MD.A.3

Given a rectangle with one side 32 cm and another side 9 cm, what is the perimeter?

• 64 cm

• 73 cm

• 82 cm

• 91 cm

Tags

CCSS.4.MD.A.3

What is the perimeter of a rectangle if the length is 32 cm and the width is 9 cm using the formula method?

• 82 cm

• 73 cm

• 91 cm

• 64 cm

Tags

CCSS.2.G.A.1

What is the significance of tick marks on the sides of a rectangle in geometry?

• They denote the perimeter

• They mark the midpoint

• They show the sides are equal

• They indicate the sides are different

Tags

CCSS.4.G.A.1

What do right angle symbols on a rectangle indicate?

• The angles are reflex

• The angles are acute

• The angles are obtuse

• The angles are right angles

Tags

CCSS.3.MD.D.8

Why is it important to understand both methods of calculating the perimeter of a rectangle?

• To confuse students

• To make calculations harder

• To have flexibility in problem-solving

• To avoid using formulas

Tags

CCSS.4.MD.A.3

What is the perimeter of a rectangle if you mistakenly use the width as the length?

• It changes

• It doubles

• It becomes zero

• It remains the same

Tags

CCSS.3.MD.D.8

What is the key takeaway from learning about the perimeter of rectangles?

• Perimeter is always the same

• Perimeter is different for each method

• Perimeter is not important

• Perimeter is only for squares

Tags

CCSS.3.MD.D.8