If the points A(4,3) and B(x,5) are on the circle with center O(2,3) find the value of x. Since AO=BO Using distance formula, we get x=2 However my approach was why can't section formula be used where (2,3) can be considered as the midpoint so that M=(x_1+x_2)/2

Passafaromx

Passafaromx

Open question

2022-08-16

If the points A ( 4 , 3 ) and B ( x , 5 ) are on the circle with center O ( 2 , 3 ) find the value of x.
Since A O = B O Using distance formula, we get x = 2
However my approach was why can't section formula be used where ( 2 , 3 ) can be considered as the midpoint so that M = x 1 + x 2 2

Answer & Explanation

Kole Weber

Kole Weber

Beginner2022-08-17Added 16 answers

That would require the line segment A B to be the diameter for M to be equal to O which is not necessarily true.
It is possible that A B doesn't pass through O.
Silvina2b

Silvina2b

Beginner2022-08-18Added 5 answers

Note : A B is a chord.
Midpoint: M = ( x / 2 + 2 , , 4 )
1) Slope A B:
m 1 := 5 3 x 4 = 2 x 4
2) Slope M O:
m 2 := 4 3 x / 2 + 2 2 = 2 / x .
m 1 is perpendicular to m 2 (why?):
m 1 m 2 = 1.
Hence x / 2 2 = x / 2 ;
x = 2

Do you have a similar question?

Recalculate according to your conditions!

New Questions in Elementary geometry

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?