Question 17
Consider four right angled triangles with leg lengths 1 cm × 4 cm, 2 cm × 4 cm, 3 cm × 4 cm, and 4 cm × 4 cm. Arrange the four triangles, without overlap. What is the smallest possible area, in square cm, of the rectangle that can fit them? (Legs of a right-angled triangle are the sides beside the right angle)