Trigonometry
Making Waves
Which is larger cos(sin x) or sin(cos x) ? Does this depend on x ?
Loch Ness
Draw graphs of the sine and modulus functions and explain the humps.
T for Tan
Can you find a way to prove the trig identities using a diagram?
Impossible Triangles?
Which of these triangular jigsaws are impossible to finish?
Curved Square
Can you find the area of the central part of this shape? Can you do it in more than one way?
Tangled Trig Graphs
Can you work out the equations of the trig graphs I used to make my pattern?
Trig Identity
In this short challenge, can you use angle properties in a circle to figure out some trig identities?
Geometric Trig
Trigonometry, circles and triangles combine in this short challenge.
Stand up Arcs
What happens when you straighten out concentric circles?
Calculating with Cosines
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?
