Question

Can you check my work please?

Celia is staring at the clock waiting for school to end so that she can go to track practice. She notices that the 4-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 1:50? (Hint: Find the number of degrees per minute first.)

My Answer: Part one:
(360degrees/60minutes = 6 degrees per minute.)
1:25 to 1:50 is 25 minutes. 25 x 6 = 150.
150pi/180 = 5pi/6

Answer 1

im not that high in math so i dont know Sorry

Answer 2

Question: why divided by 180?

Answer 3

oh radian

Answer 4

ok, you are correct.

Answer 5

correct is what I think

Answer 6

To convert degrees to radians you multiply by 180, to convert radians to degrees you divide by 180.

Answer 7

Can someone help by with part two though?
Part 2: How far does the tip of the minute hand travel during that time?