Area and Perimeter of Compound Figures

Front

What is the definition of perimeter?

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 the definition of area?

Back

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

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width: A = length × width.

Front

What is a compound figure?

Back

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

Front

How do you find the area of a compound figure?

Back

Calculate the area of each simple shape and then sum them up.

Front

What is the formula for the area of a triangle?

Back

A = 1/2 × base × height.

Front

How do you find the area of a circle?

Back

Use the formula A = πr², where r is the radius.

Front

What is the value of π (pi) used in calculations?

Back

Approximately 3.14.

Front

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

Back

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