Determining the angle between hour hand and minute hand on clock?
Q. A clock is showing the time as exactly 3pm and 25 seconds. Because a full minute has not passed since 3:00, the hour hand is pointing directly at the 3 and the minute hand is pointing directly at the 12. If the tip of the second hand is directly below the tip of the hour hand, and if the length of the second hand is 9cm, what is the length of the hour hand?
Asked by Ms B - Fri Nov 7 19:59:33 2008 - - 1 Answers - 0 Comments

A. the angle is going to be (25/60), which is the angle of the second hand, minus 15/60, which is the angle of the hour hand. it should come out to be 60 , since the circle is 360 using trig and knowing 30-60-90 triangles, since the second hand is 9cm, divide it by 2 to get the length or the hour hand 4.5 cm
Answered by GayVampire - Fri Nov 7 20:11:52 2008

Why is the minute hand longer than the hour hand on a clock?
Q. After all, the hour hand is more important.
Asked by cremedelacreme04 - Sat May 27 00:35:37 2006 - - 9 Answers - 1 Comments

A. there has to be some difference...if the minute had would be shorter than it would make it difficult to check with accuracy that it was on which minute at any moment...and the accuracy of hour hand is also clear due to minute hand...thats why it is so..
Answered by ishtiaq.zaki - Sat May 27 00:51:33 2006

The minute hand of a clock is 6 centimeters long and the hour hand is 2 centimeters long.?
Q. At 4pm, how far is the tip of the minute hand from the tip of the hour hand?
Asked by eclipsegt_01_03 - Sat Sep 29 11:26:39 2007 - - 4 Answers - 0 Comments

A. use the cosine rule let b = 6, c= 2 and A = 120 is the angle between the hands so a = ? is the distance between the tips then a = b + c - 2bcCosA = 6 + 2 - 2*6*2Cos120 = 6 + 2 - 2*6*2*(-1/2) = 52 so a = 52 is the distance between the tips note: Cos120 = -cos60 = -1/2 .
Answered by B Burner - Sat Sep 29 14:10:04 2007