Flashcard 5: 4.MD.3

Front

What is the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width. (Area = Length × Width)

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around it, calculated by adding the lengths of all four sides. (Perimeter = 2 × (Length + Width))

Front

If a rug covers 56 square feet, how do you find the dimensions of the rug?

Back

To find the dimensions, you can use the area formula. For example, if the length is 7 ft, the width would be 8 ft (7 × 8 = 56 sq. ft).

Front

What is the cost of flooring if it is $5 per square foot and the area is 140 sq. ft.?

Back

Total cost = Area × Cost per square foot = 140 sq. ft. × $5/sq. ft. = $700.

Front

What does it mean if two rectangles have equal perimeters?

Back

It means that the total distance around both rectangles is the same, even if their lengths and widths are different.

Front

How do you determine possible dimensions of a rectangle given its perimeter?

Back

Use the perimeter formula (P = 2 × (Length + Width)) and solve for Length and Width combinations that fit the given perimeter.

Front

What is the area of a square with a perimeter of 180 feet?

Back

First, find the side length: Side = Perimeter/4 = 180 ft / 4 = 45 ft. Then, Area = Side × Side = 45 ft × 45 ft = 2025 sq. ft.

Front

What is a square?

Back

A square is a special type of rectangle where all four sides are equal in length.

Front

What is the formula for finding the area of a square?

Back

Area = Side × Side (or Area = Side²).

Front

What is the relationship between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around it. They are related but represent different properties.