Equation of a Circle, Arc Sector and Arc Length

Find the arc length.

• 5.50 cm

• 11.00 cm

• 0.39 cm

• 141.37 cm

Alison is jogging on a circular track that has a radius of 140 feet.  She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN.

• 47

• 74

• 94

• 123

If the length of the 45° region of this circle is 10 inches, what is the radius of the circle?

• 6in

• 3in

• 6.8in

• 2.5in

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4

• 2

• 3

• 16

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Area of a sector =

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Area of a sector =

• 5688π ft

• 15.8π ft

• 150.4π ft

• 54,150 ft

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Area of a sector =