Question

Area of the circle centre at (1, 2) and passing through (4, 6) is ​

Answer 1

Step-by-step explanation:

Answer

The centre of the circle is (1,2).

(x−1)

2

+(y−2)

2

=a

2

It passes through (4,6).

Therefore, (4−1)

2

+(6−2)

2

=a

2

⇒a

2

=9+16

⇒a=5

Thus radius a=5

Hence, area of circle is πa

2

=π(5)

2

=25π

Answer 2

refer the attachment........