1. Let's state the problem: We have a rectangle with height 20, a trapezium with height 15 mm, and a parallelogram with height 15 mm. 2. To find areas of these shapes, we use the following formulas: - Rectangle area: $$\text{Area} = \text{base} \times \text{height}$$ - Trapezium area: $$\text{Area} = \frac{1}{2} (a + b) \times h$$ where $a$ and $b$ are the lengths of the parallel sides and $h$ is the height. - Parallelogram area: $$\text{Area} = \text{base} \times \text{height}$$ 3. Since only heights are given, to calculate areas, we need the base lengths for each shape. 4. If you provide the base lengths, I can help calculate the areas step-by-step.