Students will learn how to evaluate the six basic trig functions when given a triangle or a point.
Conclude by giving your students these challenges:
- Colour in the Square by NRICH
- Converse by NRICH
- Wipeout by NRICH
2020 Math Kangaroo Levels 9-10 Problem #27: In each of the squares, a number is written so that the sums of the 4 numbers in each row and in each column are the same. What number goes into the shaded square?

Here's the solution.