Tangents and Radius in Circles

The length of tangent from a point A at a distance of 5 cm from the centre of the circle is 4 cm. What is the radius of the circle?

• 2 cm

• 3 cm

• 4 cm

• 5 cm

From the figure from a point P which is at a distance 13 cm from the centre O of a circle of radius 5 cm , the pair of tangents AP and BP to the circle are drawn. Then the area of the quadrilateral PAOB is

The perpendicular at the point of contact of the tangent to a circle passes through the centre

• TRUE

• FALSE

In the diagram, a tangent and a line drawn to the point of tangency form a right triangle. Solve for "?" (the length of the hypotenuse)

• 15

• 6

• -24

• 14

AB and AC are tangents.

m( arc BXC) = 150°. , Then m(arc ByC) = _____

• 210⁰

• 55⁰

• 100⁰

• 110⁰

Mathematical Equivalence

OFF

In the diagram, a tangent and a line drawn to the point of tangency form a right triangle. Solve for "?"

• 15

• 6

• -24

• 14

• 7.9

What is the geo step used in order to solve for x?

• PM = PN

• PM = MO

• PN = NO

• MO = NO

• F

• G

• H

• J

• K