Trigonometry

Loch Ness

Age 16 to 18 Challenge Level:

Draw graphs of the sine and modulus functions and explain the humps.

Impossible Square?

Age 16 to 18 Challenge Level:

Can you make a square from these triangles?

Impossible Triangles?

Age 16 to 18 Challenge Level:

Which of these triangular jigsaws are impossible to finish?

Curved Square

Age 16 to 18 Challenge Level:

Can you find the area of the central part of this shape? Can you do it in more than one way?

Tangled Trig Graphs

Age 16 to 18 Challenge Level:

Can you work out the equations of the trig graphs I used to make my pattern?

Weekly Challenge 21: Trig Identity

Age 14 to 18 Short Challenge Level:

A weekly challenge: these are shorter problems aimed at Post-16 students or enthusiastic younger students.

Geometric Trig

Age 16 to 18 Short Challenge Level:

Trigonometry, circles and triangles combine in this short challenge.

Trigger

Age 16 to 18 Short Challenge Level:

Can you sketch this tricky trig function?

Weekly Challenge 23: Stand up Arcs

Age 14 to 18 Short Challenge Level:

A weekly challenge: these are shorter problems aimed at Post-16 students or enthusiastic younger students.

Calculating with Cosines

Age 14 to 18 Challenge Level:

If I tell you two sides of a right-angled triangle, you can easily work out the third. But what if the angle between the two sides is not a right angle?