Review Centers 4/20

What is the measure of a circle?

• 90 degrees

• 360 degrees

• 180 degrees

• 270 degrees

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

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

Find the arc length.  Leave your answer in terms of π.

• 7/4π
• 7/2π
• 1/8π
• 45π

Tags

CCSS.HSG.C.B.5

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

• 1.26

• 452.39

• 9.42

• 113.10

Tags

CCSS.HSG.C.B.5

is the formula for?

• arc length
• area of a sector
• area of a segment
• arc measure

Tags

CCSS.HSG.C.B.5

What is the green area called?

• sector

• segment

• arc

• section

What is the distance marked off by L called?

• circumference

• tangent

• arc length

• sector

Tags

CCSS.HSG.C.A.2

A ____ angle is an angle whose vertex is a the center of a circle.

• supplementary
• complimentary
• central
• obtuse

How does the process for finding the arc length differ from the process for finding the sector area?

• The arc length is a degree while the sector area is labeled in square units.

• The arc length uses π while the sector area does not always use π.

• The arc length and sector area are always equal.

• The arc length requires using the circumference while sector area requires the circle area formula.

Tags

CCSS.HSG.C.B.5

Find the area of the shaded sector. Round to the nearest whole number. Don't include units.

Tags

CCSS.HSG.C.B.5