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October 21, 2014

October 21, 2014

Posted by **Davis** on Monday, August 29, 2011 at 1:21am.

2:15

- Trig -
**Jai**, Monday, August 29, 2011 at 2:06amwe only to find the angle formed between 2 and 3 (represents where the longer hand points when 15 minutes). notice that, as the longer hand of clock moves, the shorter hand also moves. the maximum angle that it can move in an hour is

360/12 = 30 degrees (occurs if the longer hand did one whole revolution or one hour)

since it's only 15 min or 1/4 of an hour,

30 / 4 = 7.5 degrees (if it's from 2, the shorter hand travelled 7.5 degrees BELOW the 2)

since the angle needed is between 2 and 3,

30 - 7.5 = 22.5 degrees

i hope you understand the explanation~ ^^;

- Trig -
**Alison**, Monday, August 29, 2011 at 2:32amHow do you write the answer in __degree___'

it wants it written like that...

would it be 22degrees30' or 22degrees25'

- Trig -
**Reiny**, Monday, August 29, 2011 at 8:13amYou would write Jai's answer as

22° 30'

since the .5 in 22.5 shows that you are half way into the next degree, and since there are 60 minutes in a degree, it would be 1/2 of 60 or 30 minutes.

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