Review Circles Vocabulary and Tangents

Diagram shows a tangent to a circle.

• True

• False

Value of x is equal to 90°

• True

• False

What is the measure of arc YZX?

• 231

• 255

• 168

• 200

If two tangents are drawn from an external point then they subtend equal angles at the centre

• TRUE

• FALSE

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

The tangents drawn at the ends of a diameter of a circle are

• Intersecting

• Prallel

• Coincident

• None of the above

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

Two concentric circles are of radii 6.5 cm and 2.5 cm. Find the length of the chord of the larger circle which touches the smaller circle

• 10 cm

• 12 cm

• 11 cm

• 7 cm

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

• TRUE

• FALSE

In two concentric circles the chord of the larger circle, which touches the smaller circle, is bisected at the point of contact

• TRUE

• FALSE