دائرے کے وتر اور مماس

A line that touches a circle at exactly one point is a:

• 1 Tangent
• 2 Chord
• 3 Secant
• 4 Radius

A tangent to a circle is perpendicular to the:

• 1 Radius at the point of contact
• 2 Diameter parallel to it
• 3 Chord
• 4 Another tangent always

The perpendicular from the centre of a circle to a chord:

• 1 Is a tangent
• 2 Bisects the chord
• 3 Is parallel to it
• 4 Is equal to the chord

Tangents drawn to a circle from an outside point are:

• 1 Perpendicular
• 2 Parallel
• 3 Different in length
• 4 Equal in length

The angle in a semicircle is:

• 1 45 degrees
• 2 180 degrees
• 3 90 degrees
• 4 60 degrees