Circle Mock Tests

The length of the radius of the circle x² + y² − 6x + 4y − 12 = 0 is:

The centre of the circle x² + y² − 6x + 4y − 12 = 0 is:

A tangent to a circle of radius 5 cm meets the circle at point P. If the tangent is 12 cm long and O is the center of the circle, find the distance of the external point from the center.

The circumference of a circle with radius 7 cm is:

A circle is inscribed in an equilateral triangle of side 12 cm. The area of the circle is:

The circumference of a circle is equal to the perimeter of a square whose side is 22 cm. What is the area of the circle? (Take π = 22/7)

In a figure, a tangent PT touches a circle at point P. A chord PQ is drawn such that angle TPQ = 50°. What is the measure of angle POQ, where O is the centre of the circle?

The circumference of a circle with radius 14 cm is (take π = 22/7):