Question

Answer 10 only please, explain how you got your answer

Answer 1

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

$\Rightarrow2\pi r=22$

$\Rightarrow2\times\frac{22}{7}\times r=22$

$\Rightarrow\frac{44}{7}\times r=22$

$\Rightarrow r=22\times \frac{7}{44}$

$\Rightarrow r=\frac{7}{2}$

⇒ r = 3.5 inches

Hence the radius of the clock is 3.5 inches.