Regular Polygons and Sectors of Circles

Front

What is a regular polygon?

Back

A regular polygon is a polygon with all sides and all angles equal.

Front

How do you calculate the area of a sector of a circle?

Back

Front

What is the formula for the area of a circle?

Back

Front

What is the apothem of a polygon?

Back

The apothem is the distance from the center of a regular polygon to the midpoint of one of its sides.

Front

How do you find the perimeter of a regular polygon?

Back

Front

What is the relationship between the apothem and the area of a regular polygon?

Back

Front

How do you calculate the area of a regular octagon?

Back

Front

What is a sector in a circle?

Back

A sector is a portion of a circle enclosed by two radii and the arc between them.

Front

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

Back

To find the area of a shaded region, subtract the area of the unshaded part from the total area of the figure.

Front

What is the formula for the area of a triangle?

Back