Geometry Flashcard

Front

What is the definition of area?

Back

The number of square units needed to cover a region.

Front

What is the definition of perimeter?

Back

The distance around a figure.

Front

If a rectangle has sides of 4 cm and 6 cm, what is its perimeter?

Back

20 cm.

Front

What is the formula to calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

A rectangular sandbox has a perimeter of 28 feet, with one width measuring 6 feet. What is the length of the sandbox in feet?

Back

12 feet.

Front

What is the perimeter of a rectangular rug with a length of 13 feet and a width of 9 feet?

Back

44 feet.

Front

What is the formula to calculate the area of a rectangle?

Back

Area = length × width.

Front

What is the area of a rectangle with a length of 5 cm and a width of 3 cm?

Back

15 cm².

Front

What is the perimeter of a polygon with sides measuring 10 in, 8 in, 12 in, and 9 in?

Back

39 in.

Front

What is the definition of a polygon?

Back

A closed figure with three or more straight sides.