Graph the circle with center ( 1,2) that passes through the point ( 4,6). Find the area and circumfrence both in terms of pie and to the nearest tenth

Answer 1

The distance from (1,2) to (4,6) = sqrt[(4-1)² + (6-2)²] = 5 and this is the radius of the circle.

The equation of the circle is (x-1)² + (y-2)² = 25.

The circumference is 10π and the area is 25π.

I will let you calculate the decimals for yourself.