Question

The circumference of a clock is 44 inches. Find the length of the minute hand on the clock. Use 22

Answer 1

Answer:

the answer is 7

Step-by-step explanation:

Answer 2

the minute hand is pretty much the radius of the circular clock.

$\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=44 \end{cases}\implies 44=2\pi r\implies \cfrac{44}{2\pi }=r\implies \cfrac{22}{\pi }=r \\\\\\ \stackrel{\textit{using }\pi =\frac{22}{7}}{\cfrac{~~22~~}{\frac{22}{7}}=r}\implies \cfrac{22}{1}\cdot \cfrac{7}{22}=r\implies \cfrac{22}{22}\cdot \cfrac{7}{1}=r\implies 7=r$