Regular Polygons & Area

Correctly identify the formula for each figure.

• regular polygon

• triangle

• circle

• parallelogram

Tags

CCSS.2.G.A.1

CCSS.1.G.A.1

Tags

TEKS.MATH.G.11C

Find the area of the shaded region.

Hint: Find the area of the rectangle and subtract the area of the triangle.

• 350 cm²
• 137.5 cm²
• 212.5 cm²
• 484.2 cm²

Tags

CCSS.6.G.A.1

What is the AREA in square feet, of the smallest square that can contain a circle with a radius of 7 feet?

hint: a square will be on the outside of a circle

• 196 ft²

• 28 ft²

• 7 ft²

• 49 ft²

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

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

• apothem
• radius
• permimeter
• area

Tags

CCSS.HSG.CO.A.1

Find the sum of the interior angles for the polygon.

Answer explanation

Find the measure of one interior angle for the regular polygon.

Answer explanation

What is a regular polygon?

• all side lengths are the same length

• all angles are the same (equal in measure)

• only some side lengths are the same

• all side lengths are different

• only some angles are the same

Tags

CCSS.2.G.A.1

Find the area of the following polygon.

• 108 u²

• 1782 u²

• 445 in²

• 891 in²

Tags

CCSS.6.G.A.1

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

Tags

CCSS.6.G.A.1