Area and Perimeter

Front

What is the formula for calculating the perimeter of a rectangle?

Back

The perimeter (P) of a rectangle is calculated using the formula P = 2(length + width).

Tags

CCSS.4.MD.A.3

Front

How do you calculate the area of a rectangle?

Back

The area (A) of a rectangle is calculated using the formula A = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a length of 10 units and a width of 4 units, what is its perimeter?

Back

The perimeter is 28 units, calculated as P = 2(10 + 4) = 28.

Tags

CCSS.4.MD.A.3

Front

If a rectangle has an area of 48 square units and a length of 8 units, what is its width?

Back

The width is 6 units, calculated as width = area / length = 48 / 8.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the relationship between the dimensions of a rectangle and its area?

Back

The area of a rectangle is directly proportional to both its length and width; increasing either dimension increases the area.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a rectangle with a length of 15 cm and a width of 10 cm?

Back

The perimeter is 50 cm, calculated as P = 2(15 + 10) = 50.

Tags

CCSS.4.MD.A.3

Front

How can you determine which of several rectangles has the greatest area?

Back

To determine which rectangle has the greatest area, calculate the area of each rectangle using A = length × width and compare the results.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a square with a side length of 5 meters?

Back

The perimeter of a square is calculated as P = 4 × side length, so P = 4 × 5 = 20 meters.

Tags

CCSS.4.MD.A.3

Front

If a rectangular garden has a perimeter of 40 feet and a length of 12 feet, what is the width?

Back

The width is 8 feet, calculated as width = (perimeter / 2) - length = (40 / 2) - 12.

Tags

CCSS.4.MD.A.3

Front

What is the area of a rectangle with a length of 7 inches and a width of 3 inches?

Back

The area is 21 square inches, calculated as A = 7 × 3 = 21.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3