Question

the radius of a circle is 4 cm what is the measure in radians of the angle subtended by an arc Pi centimeters long

Answer 1

`\text{Length of arc in (radian) = }\theta r`
`L\text{ = }\pi cm,\text{ r=4cm}`
`\begin{gathered} \pi\text{ = 4 x }\theta \\ \theta=(\pi)/(4) \\ \text{The angles measured in radian subtended by the arc is }(\pi)/(4) \end{gathered}`