HELP IN MATH PLZ!!!

[seif9000]

How can get midpoint and the length (using pythagoras theorem) of two points that have cordinates A(2,1) B(8,5)!!!
plz help and thnx
(I AM FROM MATH EDEXCELL BUT THERE IS NO ONE ANSWERING ME IN THE OTHER FORUM)

 

[XPFMember]

what do u mean using pythagoras theorem??
I know the formula to find midpoint cooordinates in the form (x,y)=>> ( [x1+x2]/2 , [y1+y2]/2 )
so that means x is adding the two x values and then divide by 2 and y value for midpoint is adding two y values of the line and divide by 2!!
if u are confused ,pls dont hesitate to ask!!

 

[SuperXDE]

(I AM FROM MATH EDEXCELL BUT THERE IS NO ONE ANSWERING ME IN THE OTHER FORUM)

It would be a better idea if we combine all IGCSE , CIE and Edexcel forums in one.

 

[XPFMember]

yeah that would be great,and it would be better if we have subjects categorized as well!!Maths in one ,bio in one...

 

[seif9000]

that what i meant by pythagoras theroem thank you very much math angel
i think also that it is better to do this superxde
also if you please math angel tell me how to get the length of this two points (A and B)

 

[XPFMember]

anyways do not hesitate to ask if u have any questions!!

 

[SuperXDE]

that what i meant by pythagoras theroem thank you very much math angel
i think also that it is better to do this superxde
also if you please math angel tell me how to get the length of this two points (A and B)

That is when Pythagoras Theorem is used , x2-x1 would give you the Horizontal Part length , y2-y1 The vertical part , and apply Pythagoras to find the Hypotenuse which is the length of AB

 

[XPFMember]

also if you please math angel tell me how to get the length of this two points (A and B)

use this formula=> root of [(x2 - x1)^2+ (y2 - y1)^2]

 

[XPFMember]

well, do see this,its very helpful http://thenightdreamer.files.wordpress. ... dition.pdf

 

[seif9000]

thank you math angel for your help!!!!

 

[XPFMember]

no problem