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Tangents drawn from an external point
Tangents drawn from an external point
Theory
Theory
Procedure
Animation
Simulator
Self Evaluation
Reference
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1)
A tangent to a circle intersects it in how many points ?
one
two
three
none of these
2)
How many parallel tangents can a circle have at the most ?
one
two
three
four
3)
A line intersecting a circle in two points in called
tangent
normal
secant
none of these
4)
A tangent AB at a point A of a circle of radius 5 cm meets a line through the centre O at a point B so that OB = 13 cm. Length AB is
13 cm
12 cm
5 cm
19 cm
5)
From a point A, the length of the tangent to a circle is 4 cm and the distance of A from the centre is 5 cm. The radius of the circle is
2cm
1cm
3cm
8cm
6)
In relation to a circle, a tangent drawn from an external point:
Intersects the circle at two distinct points
Touches the circle at exactly one point
Does not intersect or touch the circle
Intersects the circle at three points
7)
The tangent drawn to a circle from an external point is perpendicular to the radius at the point of contact. True or False?
False
True
8)
The length of tangents drawn from an external point to a circle is always equal. True or False?
False
True
9)
If the length of a tangent drawn from an external point to a circle is 8 units, and the distance between the center of the circle and the external point is 10 units, what is the radius of the circle?
12 units
6 units
10 units
8 units
10)
The tangents drawn from an external point to a circle are congruent. True or False?
False
True