Question

centre of the circle is origin. its radius is 3 units then a point lies inside the circle

a) (1,2) b) (3,4) c) (2,3)

plzzz help me fast

Answer 1

Answer:

I hope it is a)

Step-by-step explanation:

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Answer 2

centre of the circle is origin. its radius is 3 units then a point lies inside the circle is given as follows.

The general equation of circle with center as the origin is given by,

x² + y² = r²

Given,

Center (0, 0)

r = 3 units

Therefore, we have,

x² + y² = 3²

x² + y² = 9

The graph of the equation x² + y² = 9 is attached below.

From graph it is clear that, a point lies inside the circle if and only if, it is enclosed by these 4 points - (3, 0), (0, 3), (-3, 0) and (0, -3)

From given options, the point that lies inside these points is (1, 2)

Therefore, option (a) is correct.