Regular Polygon

Find the area of the following polygon.

• 15 in²

• 240 in²

• 120 in²

• 20 in²

Find the area of the following polygon.

• 108 u²

• 1782 u²

• 445 in²

• 891 in²

What is the area of a regular octagon having an apothem of 13.3 meters and a side length of 11 meters?

• 585.2 m²

• 1170.4 m²

• 292.6 m²

• 2340.8 m²

What is the area?

• 173.832 u²

• 21.729 u²

• 43.458 u²

• 347.664 u²

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

• plain

• perfect

• regular

• magical

What is the formula for finding the area of a regular polygon?

• A = ½ ∙P∙ a

• A = 2 ∙P∙ a

• A = ½ ∙b ∙h

• A = ½ ∙d₁d₂

Find the area.

• 50.4

• 700.56

• 100.08

• 1401.12

Which is the apothem?

• AD

• AB

• CD

• CB

Find the area of the shaded region.

• 13.5

• 54

• 67.5

• 13.5

A regular decagon has a perimeter of 10 m, and an apothem of 1.5 m. What is the area of the decagon?

• 300 m²

• 30 m²

• 75 m²

• 7.5 m²