Question

with
a) AB is a diameter of a circle with centre c(-2,5).if A=(3,-7)find a)the length of the radius AC.2)the co-ordinate of B​

Answer 1

Step-by-step explanation:

(i)

(ii) As ‘C’ mid point of AB

-2 = (3 + x)/2 [∵ mid point formula]

Or - 4 = 3 + x

x = - 7

and 5 = (-7 + y)/2

and 10 = - 7 + y

and y = 17

∴ B(- 7, 17).