Perimeter and Area of Compound Figures

Front

What is the definition of perimeter?

Back

Perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2(length + width)

Front

What is the definition of area?

Back

Area is the amount of space inside a two-dimensional shape.

Front

How do you calculate the area of a rectangle?

Back

Area = length × width

Front

What is a compound figure?

Back

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

Front

How do you find the area of a compound figure?

Back

To find the area of a compound figure, calculate the area of each simple shape and then sum them up.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2(base × height)

Front

How do you find the area of a shaded region in a compound figure?

Back

Find the area of the entire figure and subtract the area of the unshaded part.

Front

What is the formula for the area of a circle?

Back

Area = π(radius²) where π is approximately 3.14.

Front

How do you calculate the perimeter of a compound figure?

Back

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