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Question 3State whether the following is true or false.A pair of tangents can be constructed from a point P to a circle of radius 3.5 cm situated at a distance of 3 cm from the centre.[Thinking processLet r = radius of circle and d = distance of a point from the centre.1. If r = d, then point lie on the circle i.e only one tangent is possible2. If r < d, then point lie outside the circle. i.e a pair of tangent is possible.3. If r>d, then point lie inside the circle i.e no tangent is possible.]

Answer»

Question 3

State whether the following is true or false.

A pair of tangents can be constructed from a point P to a circle of radius 3.5 cm situated at a distance of 3 cm from the centre.

[Thinking process

Let r = radius of circle and d = distance of a point from the centre.

1. If r = d, then point lie on the circle i.e only one tangent is possible

2. If r < d, then point lie outside the circle. i.e a pair of tangent is possible.

3. If r>d, then point lie inside the circle i.e no tangent is possible.

]


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