Radius & Tangent (AQA A-Level Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is a tangent to a circle?
What is a tangent to a circle?
A line that touches the circle once
What is the relationship between a radius and tangent at the point of tangency?
What is the relationship between a radius and tangent at the point of tangency?
They are perpendicular
How many tangents can be drawn from a point outside the circle?
How many tangents can be drawn from a point outside the circle?
Two
What is the radius of the circle ?
What is the radius of the circle ?
6
For circle at point , what is the tangent equation?
For circle at point , what is the tangent equation?
At how many points does a tangent touch a circle?
At how many points does a tangent touch a circle?
One
Two tangents drawn from an external point are:
Two tangents drawn from an external point are:
Equal in length
If gradient of normal is , what is gradient of tangent?
If gradient of normal is , what is gradient of tangent?
For a line to be tangent to a circle, the discriminant must be:
For a line to be tangent to a circle, the discriminant must be:
Zero
All radii of a circle are:
All radii of a circle are:
Equal in length