Question

Help me please , i don’t understand what this means !

Answer 1

`B.\ \pi =(C)/(2r)`

Explanation:

`We\ are\ given\ that,\\C=2\pi r\\Hence,\\We\ now\ need\ to\ recreate\ this\ equation\ in\ terms\ of\ \pi,\\Hence,\\C=2\pi r\\\pi r =(C)/(2) [Transposing\ 2\ to\ the\ RHS]\\\pi =(C)/(2r)[Transposing\ r\ to\ the\ RHS]\\Hence,\\`

`\pi =(C)/(2r)`