Perimeter flashcard 1 24-25 math

Front

What is the definition of perimeter?

Back

The distance around an object.

Front

How do you calculate the perimeter of a rectangle?

Back

Add together the lengths of all four sides, or use the formula P = 2(length + width).

Front

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

Back

20 cm (P = 4 × side length).

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its perimeter?

Back

30 cm (P = 2(10 + 5)).

Front

What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?

Back

12 cm (P = 3 + 4 + 5).

Front

What is the perimeter of a circle called?

Back

Circumference.

Front

How do you calculate the circumference of a circle?

Back

Use the formula C = 2πr, where r is the radius.

Front

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

Back

22 cm (P = 2(8 + 3)).

Front

If the perimeter of a square is 24 cm, what is the length of one side?

Back

6 cm (side length = perimeter/4).

Front

What is the relationship between perimeter and area?

Back

Perimeter measures the distance around a shape, while area measures the space inside it.