Finding Perimeter Flashcard for Grade 3

Front

What is the perimeter of a square?

Back

The perimeter of a square is the total distance around it, calculated by adding the lengths of all four sides. It can also be found using the formula: Perimeter = 4 × side length.

Front

If a square has a side length of 5 units, what is its perimeter?

Back

Perimeter = 4 × 5 = 20 units.

Front

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

Back

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

Front

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

Back

Perimeter = 2 × (10 + 4) = 2 × 14 = 28 units.

Front

What is the perimeter of a square with a side length of 9 units?

Back

Perimeter = 4 × 9 = 36 units.

Front

How do you find the perimeter using addition?

Back

To find the perimeter using addition, add the lengths of all sides together. For a rectangle, this means adding the length and width twice: Perimeter = length + width + length + width.

Front

If a rectangle has a length of 8 units and a width of 4 units, what is its perimeter?

Back

Perimeter = 2 × (8 + 4) = 2 × 12 = 24 units.

Front

What is the perimeter of a rectangle with length 7 units and width 9 units?

Back

Perimeter = 2 × (7 + 9) = 2 × 16 = 32 units.

Front

If the side length of a square is 6 units, what is its perimeter?

Back

Perimeter = 4 × 6 = 24 units.

Front

What is the perimeter of a rectangle with length 10 units and width 3 units?

Back

Perimeter = 2 × (10 + 3) = 2 × 13 = 26 units.