Question:
The circumference of a clock is 22 inches. What is the radius of the clock?
Answer:
Radius = 3.5 inches
Solution:
Shape of the clock is circle.
Circumference of the circle = 2πr
Circumference of a clock = 22 inches
[tex]\Rightarrow2\pi r=22[/tex]
[tex]$\Rightarrow2\times\frac{22}{7}\times r=22[/tex]
[tex]$\Rightarrow\frac{44}{7}\times r=22[/tex]
[tex]$\Rightarrow r=22\times \frac{7}{44}[/tex]
[tex]$\Rightarrow r=\frac{7}{2}[/tex]
⇒ r = 3.5 inches
Hence the radius of the clock is 3.5 inches.
