Perimeter

Front

What is the definition of perimeter?

Back

Perimeter is the total distance around the outside of a two-dimensional shape, calculated by adding the lengths of all its sides.

Front

How do you calculate the perimeter of a rectangle?

Back

To calculate the perimeter of a rectangle, use the formula: P = 2(length + width).

Front

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

Back

The perimeter of a square is calculated as P = 4 × side length. For a side length of 5 units, P = 4 × 5 = 20 units.

Front

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

Back

Using the formula P = 2(length + width), the perimeter is P = 2(10 + 4) = 2 × 14 = 28 cm.

Front

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

Back

The perimeter of a triangle is the sum of its sides. Therefore, P = 3 + 4 + 5 = 12 cm.

Front

How do you find the perimeter of a polygon with unequal sides?

Back

To find the perimeter of a polygon with unequal sides, add the lengths of all the sides together.

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 the circumference of a circle?

Back

The formula for the circumference of a circle is C = 2πr, where r is the radius.

Front

If the radius of a circle is 7 cm, what is its circumference?

Back

Using the formula C = 2πr, the circumference is C = 2 × π × 7 ≈ 43.98 cm.

Front

What is the relationship between the perimeter and area of a shape?

Back

The perimeter is the total distance around a shape, while the area measures the space contained within it. They are related but represent different properties.