The minute hand on MS. Scott’s clock is 22 inches long, from the center of the clock to its edge. Approximately how far does the minute hand travel around the clock in one hour?

one thousand three hundred twenty inches

answer

explanation

the area of a circle is calculated using the formula

or

we can use any of the above formulae to calculate the required. preferably, let us use the latter since the diameter is

we substitute the diameter into the formula to get:

this is the exact value for the area of the circle.

the correct answer is a