8.2 Arc Length and Sector Area

Calculate the exact length of the bold arc.

• 5688π ft

• 15.8π ft

• 150.4π ft

• 54,150 ft

Tags

CCSS.HSG.C.B.5

Which answer is closest to the area of this sector?

• 52.4 in²

• 18,864 in²

• 60 in²

• 10.47 in²

Tags

CCSS.HSG.C.B.5

Calculate the length of the arc. Round your answer to the nearest hundredth.

• 2.09 m

• 301.59 m

• 1.05 m

• 2.51 m

Tags

CCSS.HSG.C.B.5

Which answer is closest to the area of the shaded sector?

• 339.12 in²

• 113.04 in²

• 339.29 in²

• None of the above

Tags

CCSS.HSG.C.B.5

The _____ is the distance from the center to any point on the circle.

• diameter
• radius
• π
• center

The distance across a circle through its center is called the _____.

• diameter
• radius
• π
• center

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2
• Divide the diameter by 2
• Add 2 to the diameter
• Subtract 2 from the diameter

Tags

CCSS.7.G.B.4

True or False: The diameter is being pictured here.

• True

• False

Tags

CCSS.HSG.C.A.2

The radius of a circle is 12 cm. What is the diameter?

Tags

CCSS.7.G.B.4

What is the area of this circle? 

• 12.56

• 25.12

• 50.24 

• 201.1

Tags

CCSS.7.G.B.4