Flashcard - 11.3 Areas of Polygons and Composite Figures

Front

A ___________ polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).

Back

regular

Front

Find the area of a rectangle with length 12 cm and width 18 cm.

Back

216 cm sq

Front

What does the 'a' stand for in the following formula? A = 1/2 * Perimeter * a

Back

apothem

Front

Find the area of a composite figure made up of a rectangle and a semicircle with a diameter of 10 cm.

Back

61

Front

Find the radius of a circle with an area of 50 cm².

Back

√(50/π) cm

Front

What is the formula for the area of a triangle?

Back

A = 1/2 * base * height

Front

Define a composite figure.

Back

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

Front

What is the area of a regular hexagon with a side length of 4 cm?

Back

A = 8√3 cm²

Front

How do you calculate the area of a trapezoid?

Back

A = 1/2 * (base1 + base2) * height

Front

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

Back

20 cm