Q66
What is the equation of a circle with centre of origin and radius is 6 cm?
A.
x2 + y2 - x - y = 36
B.
x2 + y2 - x = 36
C.
x2 + y2 - y = 36
D.
x2 + y2 - 36 = 0
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
(x - a)2 + (y - b)2 = r2Origin point = (0, 0)
(x - 0)2 + (y - 0)2 = 62
x2 + y2 = 36
x2 + y2 - 36 = 0