Area and Perimeter

Front

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

Back

Perimeter = 2 * (length + width)

Front

Define 'area' in the context of geometry.

Back

Area is the amount of space inside a two-dimensional shape, measured in square units.

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length * width

Front

How do you calculate the perimeter of a polygon?

Back

Add the lengths of all the sides together.

Front

What is the unit of measurement for area?

Back

Square units (e.g., square centimeters, square meters) are used to measure area.

Front

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

Back

Perimeter = 4 * side length = 4 * 5 cm = 20 cm.

Front

What is the area of a triangle?

Back

Area = 1/2 * base * height.

Front

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

Back

Area = 10 cm * 4 cm = 40 sq 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 the circumference of a circle?

Back

Circumference = 2 * π * radius.