Perimeter

Front

What is the definition of perimeter?

Back

Perimeter is the total distance around the outside of a 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 cm?

Back

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

Front

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

Back

The perimeter of the triangle is the sum of its sides: 3 cm + 4 cm + 5 cm = 12 cm.

Front

What is the perimeter of a rectangle with a length of 10 cm and a width of 4 cm?

Back

Using the formula P = 2(length + width), the perimeter is P = 2(10 cm + 4 cm) = 28 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 a rectangle has a perimeter of 24 cm and a length of 8 cm, what is its width?

Back

Using the perimeter formula P = 2(length + width), we can rearrange it to find width: width = (P/2) - length. Thus, width = (24 cm / 2) - 8 cm = 4 cm.

Front

What is the perimeter of a regular hexagon with a side length of 6 cm?

Back

The perimeter of a regular hexagon is calculated as P = 6 × side length. Therefore, P = 6 × 6 cm = 36 cm.