Duelling Mathematicians

Equation of a Circle

Take turns answering maths questions. If you answer incorrectly, your time is halved and play switches.
The quiz ends when a player's timer reaches zero.

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Player 1

30 seconds

Player 2

30 seconds

Quiz Mode

Two player Single player Streak mode

Starting Time

30 seconds

Think Time

0 seconds

Bonus Time

0 seconds

About this topic

Practise equations of circles, including centre-radius form, coordinates, tangents and points on a circle.

This topic covers

using centre-radius form
finding the radius from an equation
checking whether a point lies on a circle
working with tangents and coordinates

Example question types

identify the centre of a circle from its equation
find the radius from an equation
check a coordinate against a circle equation

Quadratics practice
Sequences and Series practice
Binomial Expansion practice
Trigonometry (AS) practice
Exponentials and Logarithms practice
Differentiation (AS) practice
Integration (AS) practice
Vectors practice

Duelling Mathematicians

Equation of a Circle

Player 1

Player 2

Example Question

About this topic

This topic covers

Example question types

Related practice