AB is diameter of a circle as A(3,-2) and centre of it (-2,4) find vertix B
Answers
Answered by
1
Answer:
here is the answer dude
Attachments:
Answered by
1
Answer :
(-7 , 10)
Note :
- The centre is the midpoint of any diameter of a circle .
- the midpoint (x , y) of the line segment joining (x1 , y1) and (x2 , y2) is given as ; x = (x1 + x2)/2 , y = (y1 + y2)/2
Solution :
Here ,
AB is the diameter of a circle where the point A is (3 , -2) and center is (-2 , 4) .
Let the required points as B(a , b)
Since AB is the diameter of the circle and the centre is (-2 , 4) , thus
=> -2 = (3 + a)/2
=> -2•2 = 3 + a
=> -4 = 3 + a
=> a = -4 - 3
=> a = -7
Also ,
=> 4 = (-2 + b)/2
=> 4•2 = -2 + b
=> 8 = -2 + b
=> b = 8 + 2
=> b = 10
Hence ,
The required point is B(-7 , 10) .
Similar questions