Perimeter of Composite Figures

Front

What is the perimeter of a shape?

Back

The perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Front

What is a composite figure?

Back

A composite figure is a shape made up of two or more simple shapes.

Front

How do you find the perimeter of a composite figure?

Back

Add the lengths of all the outer sides of the figure.

Front

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

Back

P = 4 x 5 cm = 20 cm.

Front

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

Back

P = 2(10 cm + 4 cm) = 28 cm.

Front

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

Back

P = 3 cm + 4 cm + 5 cm = 12 cm.

Front

What is the formula for the perimeter of a circle?

Back

The perimeter of a circle is called the circumference, calculated as C = 2πr, where r is the radius.

Front

If a composite figure is missing a dimension, what should you do?

Back

Use given dimensions and relationships to find the missing dimension before calculating the perimeter.

Front

What is the perimeter of a composite figure made of a rectangle (length 6 cm, width 4 cm) and a square (side 4 cm)?

Back

P = 6 cm + 4 cm + 4 cm + 4 cm = 18 cm.