The cross-section measurements of the right-angled, triangular faced prisms are 3 by 4 cm, 6 by 4cm and 6 by 8cm. The largest is therefore four times the volume of the smallest.The triangular 3 by 4 cm right-angled triangular prism has the same area and hence volume (all prisms have a depth/height of 6cm) as the trapezium, isosceles triangular prism and the obtuse scalene triangular prism. The area of the parallelogram,...