Arc Sectors

Find the area of the shaded region. Round your answer to the nearest tenth.

• 18.8 units²

• 9.4 units²

• 113.1 units²

• 77.6 units²

Find the arc length of the sector. Round your answer to the nearest tenth.

• 18.8 cm

• 56.5 cm

• 9.4 cm

• 32.9 cm

Find the area of the sector. Round your answer to the nearest tenth.

• 58.9 m²

• 11.8 m²

• 23.6 m²

• 117.8 m²

Find the area of the sector. Round your answer to the nearest tenth.

• 12.6 units²

• 4.2 units²

• 6.3 units²

• 2.1 units²

Find the area of the sector. Round your answer to the nearest tenth.

• 53.4 yd²

• 120.2 yd²

• 26.7 yd²

• 13.4 yd

Is the formula for

• arc length

• area of a sector

• area of a segment

• arc measure

Is the formula for

• arc length

• area of a sector

• area of a segment

• arc measure

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.

What is the area of the shaded sector?

• 339.12 in²

• 113.04 in²

• 338.29 in²

• None of the above

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. (Use 3.14)

• 9.2 sq. in.

• 10.5 sq. in.

• 31.4 sq. in.

• 38.2 sq. in.