Question

plz tell solution plz tell me solution plz plz ​

Answer 1

x^2 + y^2 -4x - 2y + k = 0

so, (x-2)^2 - 4 + (y - 1)^2 - 1 + k = 0

     (x-2)^2 + (y-1)^2 = 5 - k

so, r^2 = (5 - k) sq. units.

We are given, area = 25π

so. π(5-k) = 25π

  so, 5 - k = 25

Hence, k = -20