Perimeter and Area of Regular Polygons

Find the area of the shaded region.

• 13.5

• 54

• 67.5

• 13.5

Find the area

• 96 cm²

• 48 cm²

• 36 cm²

• 48 cm

Find the area.

• 50.4

• 700.56

• 100.08

• 1401.12

Find the area.

• 12.75

• 191.25

• 19.125

• 95.625

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

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 area?

• 24 cm²

• 48 cm²

• 120 cm²

• 240 cm²

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

Which is the apothem?

• AD

• AB

• CD

• CB

Find the area of a regular hexagon with a side length of 9 cm.

• 210.4 cm²

• 230.1 cm²

• 237.0 cm²

• 260 cm²