Perimeter of Common Shapes

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around it, calculated by adding the lengths of all four sides. Formula: P = 2(length + width).

Front

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

Back

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

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 equal sides. Formula: P = 4(side length).

Front

If a square has a side length of 4 cm, what is its perimeter?

Back

P = 4(4) = 16 cm.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle with all three sides of equal length.

Front

If each side of an equilateral triangle is 6 inches, what is its perimeter?

Back

P = 3(6) = 18 inches.

Front

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

Back

The perimeter of a triangle is found by adding the lengths of all three sides. Formula: P = side1 + side2 + side3.

Front

If a triangle has sides of 3 cm, 4 cm, and 5 cm, what is its perimeter?

Back

P = 3 + 4 + 5 = 12 cm.

Front

What is the perimeter of a circle called?

Back

The perimeter of a circle is called the circumference.

Front

What is the formula for finding the circumference of a circle?

Back

C = 2πr, where r is the radius of the circle.