Celia is staring at the clock waiting for school to end so that she can go to track practice. she notices that the 5-inch-long minute hand is rotating around the clock and marking off time like degrees on a unit circle. part 1: how many radians does the minute hand move from 1: 25 to 1: 55? (hint: find the number of degrees per minute first.) part 2: how far does the tip of the minute hand travel during that time? you must show all of your work.

a)

b) 15.7 inches

Step-by-step explanation:

We know that the measure of complete circle is .

Therefore,

The minute hand move from 1:25 to 1:55, it means the minute have cover 30 minutes.

Now, 30 minutes=

In radians, 30 minutes=

Therefore, 30 minutes=

Also the length of  arc is given by

Now, for radius r= 5 inch and

Length traveled by  the tip of the minute hand travel during that time=

d is the correct answer

step-by-step explanation:

x= 8 because 3x = 3 * 8, and 3*8 = 24