Area of Circles and Regular Polygons

REGULAR in Maths means...

• Normal

• Two sides have the same length.

• All sides are equal and all angles are equal.

• It has right angles.

Tags

CCSS.2.G.A.1

Which shape is a regular polygon?

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Tags

CCSS.2.G.A.1

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

• apothem
• radius
• permimeter
• area

Which is the apothem?

• AD

• AB

• CD

• CB

Find the area.

• 12.75
• 191.25
• 19.125
• 95.625

Tags

CCSS.6.G.A.1

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

What is the area of a circle?

• The distance around a circle.
• The space inside the circle.
• A line from side to side passing through the center.
• A line from the center to the side.

Find the area of the circle.

• 56.52

• 254.34

• 1017.36

• 113.04

Tags

CCSS.7.G.B.4

Steven purchases a bowl. The diameter of the bowl is 14 cm. What is the circumference of the bowl?

• 28 cm

• 43.96 cm

• 87.96 cm

• 7 cm

Tags

CCSS.7.G.B.4

Find the area of this quarter circle with a radius of 6 cm.

• 56.52 cm

• 113.04 cm

• 28.26 cm

• 37.68 cm

Tags

CCSS.7.G.B.4