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More Lessons for A Level Maths

Math Worksheets

A collection of videos, activities and worksheets that are suitable for A Level Maths.

**Equation of Tangent to a Circle : C2 Edexcel June 2010 Q10(b)**

Example:

The circle C has centre A(2,1) and passes through the point B(10,7)

(a) Find an equation for C.

The line l_{1} is the tangent to C at point B.

(b) Find an equation for l_{1}.
**Tangents : Equation of a tangent to a Circle**

Example:

Find the equation of the tangent to the circle

x^{2} + y^{2} + 10x + 2y + 13 = 0 at the point (-3,2)

**Core 2 - Coordinate Geometry (The Equation of a Circle) - Basic Introduction**
**Coordinate Geometry - Circle, Tangents : C2 Edexcel January 2011 Q9**

Example:

The points A and B have coordinate (-2,11) and (8,11) respectively?

Given that AB is a diameter of circle C.

(a) show that the centre of C has coordinates (3,6).

(b) find an equation for C.

(c) Verify that the point (10,7) lies on C.

(d) Find an equation to the tangent at C at the point (10,7), giving your answer in the form y = mx + c, where m and c are constants.

More Lessons for A Level Maths

Math Worksheets

A collection of videos, activities and worksheets that are suitable for A Level Maths.

Example:

The circle C has centre A(2,1) and passes through the point B(10,7)

(a) Find an equation for C.

The line l

(b) Find an equation for l

Example:

Find the equation of the tangent to the circle

x

Example:

The points A and B have coordinate (-2,11) and (8,11) respectively?

Given that AB is a diameter of circle C.

(a) show that the centre of C has coordinates (3,6).

(b) find an equation for C.

(c) Verify that the point (10,7) lies on C.

(d) Find an equation to the tangent at C at the point (10,7), giving your answer in the form y = mx + c, where m and c are constants.

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