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

Calculate the perimeter of each simple shape and then add them together.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

If the radius of a circle is 7 meters, what is its circumference using π = 3.14?

Back

C = 2 × 3.14 × 7 = 43.96 meters.

Front

What is the relationship between the radius and diameter of a circle?

Back

The diameter is twice the radius (D = 2r).

Front

How do you determine if a side is part of the perimeter?

Back

A side is part of the perimeter if it is on the outer edge of the shape.

Front

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

Back

P = 3 + 4 + 5 = 12 m.

Front

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

Back

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