Question

Find the circumference and area of
the circle x2+y2-6x-8y+ 15=0​

Answer 1

Answer:

2g=-6=>g=-3,2f=-8=>f=-4 and c=15

$\sqrt{g2 + f2 - c} = r$

$r = \sqrt{10}$

circumference of a circle =2πr

=2*22/7*√10

=(44/7)√10

area of the circle=πr2=22/7*10

=31.4