Mathematics
The diameter of a circle with centre at point O is 30 cm. A point P lies in the same plane as the circle and OP = 20 cm, then point P lies :
on the circumference of the circle
inside the circle.
outside the circle.
nothing can be said
Circles
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Answer
Given, diameter of a circle = 30 cm.
As we know that radius is half of the diameter.
⇒ Radius = x diameter= x 30
= 15 cm.
The distance from the center O to point P is 20 cm. Since OP = 20 cm is greater than the radius of the circle (15 cm).
∴ Point P lies outside the circle.
Hence, option 3 is the correct option.
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