Question

. If center of the circle (2,3) and point on circle (6,6) then find the radius.

Answer 1

Answer:

Let A be the centre of the circle with points (2,3) and B be the point in the circle with the coordinates (6,6)

Therefore distance between AB is the radius of the circle

AB =

$\sqrt{(6 - 2) ^{2} + (6 - 3) {}^{2} }$

=

$\sqrt{4 {}^{2} + 3 {}^{2} }$

=

$\sqrt{16 + 9}$

=

$\sqrt{25}$

=

$5$