91Ó°ÊÓ

Find the length of the arc cut off by the given central angle \(\theta\) in a circle of radius \(r\). \(\theta=0.8 \mathrm{rad}, r=12 \mathrm{~cm}\)

Assume that a particle moves along a circle of radius \(r\) for a period of time \(t\). Given either the arc length \(s\) or the central angle \(\theta\) swept out by the particle, find the linear and angular speed of the particle. \(r=4 \mathrm{~m}, t=2 \sec , \theta=3 \mathrm{rad}\)

Convert the given angle to radians. \(4^{\circ}\)

Find the area of the sector for the given angle \(\theta\) and radius \(r\). \(\theta=2.1 \mathrm{rad}, r=1.2 \mathrm{~cm}\)

Assume that a particle moves along a circle of radius \(r\) for a period of time \(t\). Given either the arc length \(s\) or the central angle \(\theta\) swept out by the particle, find the linear and angular speed of the particle. \(r=8 \mathrm{~m}, t=2\) sec, \(\theta=3 \mathrm{rad}\)

Find the length of the arc cut off by the given central angle \(\theta\) in a circle of radius \(r\). \(\theta=171^{\circ}, r=8 \mathrm{~m}\)

Convert the given angle to radians. \(15^{\circ}\)

Find the area of the sector for the given angle \(\theta\) and radius \(r\). \(\theta=\frac{3 \pi}{7} \mathrm{rad}, r=3.5 \mathrm{ft}\)

Find the area of the sector for the given angle \(\theta\) and radius \(r\). \(\theta=78^{\circ}, r=6 \mathrm{~m}\)

Find the length of the arc cut off by the given central angle \(\theta\) in a circle of radius \(r\). \(\theta=\pi\) rad, \(r=11\) in