Areas of triangles, parallelograms and trapeziums Jaa Sulje Exercise 15.91 Avaa lomake Exercise 15.92 Avaa lomake Exercise 15.93 Avaa lomake Exercise 15.94 Avaa lomake Exercise 15.95 Avaa lomake Exercise 15.96 Avaa lomake Exercise 15.97 Avaa lomake Exercise 15.98 Avaa lomake
