Area of a Circle and Sector Area

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 quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00

Tags

CCSS.7.G.B.4

Find the area of the shaded sector of circle O.  The radius is 6 inches and the central angle is 100°.  Express answer to the nearest tenth of a square inch.

• 9.2 sq. in.
• 10.5 sq. in.
• 31.4 sq. in.
• 38.2 sq. in.

Tags

CCSS.HSG.C.B.5

What is the area of the shaded region? Round to the nearest hundredth.

• 50.27
• 3015.93
• 8.38
• 4.19

Tags

CCSS.HSG.C.B.5

What is the area of this circle?

• 4π

• 8π

• 16π

• π

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 25π

• 10π

• π

• 5π

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 12π

• 6π

• 144π

• 36π

Tags

CCSS.7.G.B.4

What is the area of the shaded sector?

• 221π/36

• 3757π/72

• 3757π/18

• None of these

Tags

CCSS.HSG.C.B.5

What is the definition of pi?

• The ratio of a circle's circumference to its diameter
• The ratio of a circle's radius to its diameter
• The ratio of a circle's area to its diameter
• The ratio of a circle's circumference to its are

Tags

CCSS.7.G.B.4

The radius of a circle is equal to half of the ________?

• circumference

• diameter

• area

• volume

Tags

CCSS.HSG.C.A.2