Area of irregular polygons

Front

What is an irregular polygon?

Back

An irregular polygon is a polygon that does not have all sides and angles equal.

Front

How do you find the area of an irregular polygon?

Back

To find the area of an irregular polygon, you can divide it into regular shapes, calculate the area of each shape, and then sum them up.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.

Front

What is the formula for the area of a trapezoid?

Back

Area = 1/2 × (base1 + base2) × height.

Front

What is a composite figure?

Back

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

Front

How do you calculate the area of a composite figure?

Back

To calculate the area of a composite figure, find the area of each simple shape and then add them together.

Front

What is the significance of units in area measurement?

Back

Units in area measurement indicate the size of the space covered, such as square feet (ft²) or square centimeters (cm²).

Front

What is the area of a rectangle with a length of 10 ft and a width of 5 ft?

Back

Area = 10 ft × 5 ft = 50 ft².

Front

What is the area of a triangle with a base of 8 cm and a height of 5 cm?

Back

Area = 1/2 × 8 cm × 5 cm = 20 cm².