Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
#1 2006-11-01 04:25:22
- Neha
- Member
- Registered: 2006-10-11
- Posts: 173
distance
find the distance between the points (3,6) and (-3,-6).
is this the way :
d= sqrt( (x2 - x1)^2 + (y2 - y1)^2 )
Live Love Life
Offline
#2 2006-11-01 04:43:17
- luca-deltodesco
- Member
- Registered: 2006-05-05
- Posts: 1,470
Re: distance
yes that is right.
The Beginning Of All Things To End.
The End Of All Things To Come.
Offline
#3 2006-11-01 04:48:49
- Neha
- Member
- Registered: 2006-10-11
- Posts: 173
Re: distance
cool so distance equal sqrt108
thanks
Live Love Life
Offline
#4 2006-11-01 04:56:56
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: distance
Not quite. In the x direction, they are 3-(-3) = 6 units apart.
In the y direction, they are 6-(-6) = 12 units apart.
This means that the distance between them is √(6²+12²) = √180 = 6√5
Why did the vector cross the road?
It wanted to be normal.
Offline
#5 2006-11-01 05:04:37
- Neha
- Member
- Registered: 2006-10-11
- Posts: 173
Re: distance
how do u get 6sqrt5
can you show me how...
i mean if you put in sqrt180 it gives u the answer in decimals...not like that
Live Love Life
Offline
#6 2006-11-01 07:15:32
- Prakash Panneer
- Member
- Registered: 2006-06-01
- Posts: 110
Re: distance
sqrt( 180) =sqrt(36 * 5)
= sqrt(36) sqrt(5)
= 6 sqrt(5).
Clear?
Letter, number, arts and science
of living kinds, both are the eyes.
Offline