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=

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step-by-step explanation:

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm