lingkaran melalui titik (0,3)
P (2,7)
r² = (2-0)² + (7-3)² = 2² + 4² = 4 + 16
= 20
r = √20 = 4√5
(x-2)² +(y-7)² = r²
x² - 4x +4 + y² -14y + 49 = 20
x² + y² - 4x - 14y +29 = 0
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lingkaran melalui titik (0,3)
P (2,7)
r² = (2-0)² + (7-3)² = 2² + 4² = 4 + 16
= 20
r = √20 = 4√5
(x-2)² +(y-7)² = r²
x² - 4x +4 + y² -14y + 49 = 20
x² + y² - 4x - 14y +29 = 0