S = R Theta - Arc Length

In circle O, the radius is 4, and the measure of minor arc AB for theta is 120 degrees. Find the length of minor arc AB to the nearest integer/whole number.

Show your work!!

• 480

• 9

• 8

• 6

Find the length of the  circle O if the
Show your work!!  Round to the nearest tenth. 
only type the number, no spaces.

Find the area of the sector formed by arc s. Notice: this angle is in radians.

• 4.71

• 9.4

• 12.5

• 3.14

Answer explanation

Find the area of the sector formed by arc s. Notice: this angle is in radians.

• 75.4

• 37.7

• 150.8

• 3.2

Answer explanation

Find the area of the dark blue sector shown at the left. The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units. Express answer to the nearest tenth of a square unit.

• 0.3 square units

• 15.7 square units

• 19.7 square units

• 50.3 square units

What is the area of the shaded sector?

• 339.12 in²

• 113.04 in²

• 339.29 in²

• None of the above

Answer explanation

Find the area of the marked sector.  Round correctly.

• 52.4 in²

• 18,864 in²

• 60 in2

• 10.47 in

Answer explanation

Find the area of the green-shaded sector.

• 150.8 cm²

• 50.3 cm²

• 201.1 cm²

• 40.9 cm²

Answer explanation