At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
what do you think
i tried solving it plugging into a certain equation, but it didnt work. I tried |dw:1370107349585:dw|
use this instead :- each hour = 30 degrees
If the hour hand were pointing directly at the 3, you would have 90º but the hour hand is exactly half way between 3 and 4
degrees between two successive digits is 30 e.g. between 4 and 5
none of this is helping.... i know that exact times are usually 90 degrees, but i dont know how to use them.....
think of it like this |dw:1370107617175:dw| but the hour hand has moved a little bit, so the angle is less than 90º
yea, i understand, but how do i use that information to solve for the question?
okay, but what equation do I solve to figure that out, because i dont know the side lengths
because, the hour hand moves 30 degree in 60 mins ( (360/12)=30 degree) so it will move 15 degree towards the minute hand in 30 mins.
People have told you the hour hand moves 30º in 1 hour (360º - the whole way round - in 12 hours) you have to figure out how far the hour hand moved in 1/2 of an hour
so would i divide 30 degrees by 2 because that would be equivalent to 1/2 and hour?
yes, that is a good idea
i dont understand why I need to know how fast the hour hand moves in a half an hour, my brain obviously doesn't work this way lol!! I am more science. I don't understand where i go from there then....
thanks for laughing
You start with this idea: if the hour hand pointed at the 3, and the minute hand pointed at the 6, the angle between them is 90º
but at 3:30 the hour hand is not pointing at the 3 (it is pointing half way between the 3 and 4) but the minute hand is pointing at the 6 so the angle is 90 minus some amount how much should you subtract from the 90 degrees ?
I guess I wil never know...... I give up.
what is S and C in your equation?
i dont understand that way @tcarroll010
75 is the correct answer
S stands for arc length and C stands for circumference, but i guess it does't apply here
there is no way I will be able to answer a question like that if I see it because I dont understand the process how you get the answer... anyway.... sorry for wasting all of your time. I must be stupid..... thanks for helping :/
C is 12 corresponding to 12 hours
S is 2.5 corresponding to arc length
how did u get 2.5
one hand is between 3 and 4 i.e. 3.5 other is at 6 6 - 3.5 = 2.5 bngo!
This is a question about adding or subtracting angles You start with this problem: hour hand pointing at the 3, minute hand pointing at the 6 Do you know the angle between the 2 hands ? (this could be answered by common sense) or you could say: hour hand is at 3 hours , so 3*30= 90º minute hand is at 6 hours, so 6*30= 180º the difference is 180-90 = 90
@phi : the hour hand isnt at 3.
for your problem, you can use the same idea the hour hand is at 3 and 1/2 hours, 3.5, so 3.5*30= 105 degrees the minute hand is at 6 hours, so 6*30= 180 deg the difference is 180-105= 75
As we know that the if hour hand moves 30 degree and then minute hand moves 360 degree. we use this relation. Suppose its 3 A.M. the angle made by hour hand and minute hand is 90 degrees. At 3:30 A.M. the minute hand moves 90 degree so the hour hand move is given by above relation. this means that if minute hand moves i degree then hour hand moves by (1/12) degree then from 3 A.M. to 3:30 A.M.. The minute hand moves by 180 degree then hour hand moves by 180*(1/12) =15 degree. Then the angle made between hour hand and minute hand is (90-15)=75 degrees
i am a visual learner.... trying to type it out wont help. I should just close this question because I don't understand. thanks for all of your time.
wait, i ll upload a photo for u
yeah that makes sense.