KnowledgeBoat Logo
|

Mathematics

The centre of the circle having end points of its one diameter as (-4, 2) and (4, -3) is:

  1. (0, -1)

  2. (2, -1)

  3. (0,12)\Big(0, -\dfrac{1}{2}\Big)

  4. (4,52)\Big(4, -\dfrac{5}{2}\Big)

Section Formula

1 Like

Answer

Let the end points of the diameter be A(-4, 2) and B(4, -3). The centre of the circle is the mid-point of the diameter AB.

The centre of the circle having end points of its one diameter as (-4, 2) and (4, -3) is: Reflection, RSA Mathematics Solutions ICSE Class 10.

By mid-point formula,

(x, y) = (x1+x22,y1+y22)\Big(\dfrac{x1 + x2}{2}, \dfrac{y1 + y2}{2}\Big)

Substituting values we get :

(x,y)=(4+42,2+(3)2)=(02,12)=(0,12).\Rightarrow (x, y) = \Big(\dfrac{-4 + 4}{2}, \dfrac{2 + (-3)}{2}\Big) \\[1em] = \Big(\dfrac{0}{2}, \dfrac{-1}{2}\Big) \\[1em] = \Big(0, -\dfrac{1}{2}\Big).

Hence, Option 3 is the correct option.

Answered By

2 Likes


Related Questions