Question

Find the length of the arc. Use 3.14 for the value of pi.

Answer 1

Given value of 3.14 as pi, angle 90 and radius 10km.

So,

`\begin{gathered} =(90)/(360)*2*3.14*20 \\ =31.4km \end{gathered}`

Hence, 31.4 km is the length of arc.