Regular Polygons

Which is the apothem?

• AD

• AB

• CD

• CB

Find m<OHM

• 30°

• 60°

• 90°

• 45°

Find the length of OM

• 20

• 10 

• 10√3

• 5√3

What would be the first step in finding the area of the pentagon?

• draw in the apothem

• calculate the length of the side

• calculate the length of the radius

• find the angle measure

After drawing in the apothem, how do you calculate the measure of the angle?

• 360÷6

• 540÷5

• 360÷5

• 360÷5÷2

What is the area?

• 24 cm²

• 48 cm²

• 120 cm²

• 240 cm²

What is the area?

• 173.832 u²

• 21.729 u²

• 43.458 u²

• 347.664 u²

A line from the center of a regular polygon at right angles to any of its sides.

• apothem

• radius

• permimeter

• area

Find the area of the following polygon.

• 108 u²

• 1782 u²

• 445 in²

• 891 in²

The apothem of a 40-sided regular polygon is 11.4 meters. What is its area if each side measures 1.9 meters?

• 216.6 m²

• 433.2 m²

• 866.4 m²

• 1732.8 m²