area and perimeter

Front

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

Back

Area = length × width.

Front

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

Back

Perimeter = 2 × (length + width).

Front

If a rectangle has a length of 10 meters and a width of 5 meters, what is its area?

Back

50 square meters.

Front

If a rectangle has a perimeter of 30 meters and a width of 5 meters, what is the length?

Back

Length = (Perimeter/2) - width = (30/2) - 5 = 10 meters.

Front

What is the area of a rectangle with a length of 8 cm and a width of 3 cm?

Back

24 square centimeters.

Front

How do you find the missing measurement of a rectangle if you know the area and one side?

Back

Use the formula Area = length × width to solve for the missing side.

Front

What is the perimeter of a rectangle with an area of 36 square feet and a width of 4 feet?

Back

Perimeter = 2 × (length + width). First, find length: Area = 36 = length × 4, so length = 9. Then, Perimeter = 2 × (9 + 4) = 26 feet.

Front

What is the relationship between area and perimeter in a rectangle?

Back

Area measures the space inside the rectangle, while perimeter measures the distance around it.

Front

If the width of a rectangle is doubled, what happens to the area?

Back

The area is also doubled if the length remains the same.

Front

What is the perimeter of a rectangle with a length of 12 cm and a width of 6 cm?

Back

Perimeter = 2 × (12 + 6) = 36 cm.