1. **Stating the problem:** Calculate the area of rectangle ABCD with length BC = 14 cm and height AD = 10 cm. 2. **Formula used:** The area $A$ of a rectangle is given by: $$A = \text{length} \times \text{width}$$ 3. **Applying the formula:** Here, length = 14 cm and width = 10 cm. 4. **Calculation:** $$A = 14 \times 10 = 140$$ 5. **Answer:** The area of rectangle ABCD is $140$ square centimeters. Since the user asked for problems 1 and 2 but only problem 1 is clearly defined, only problem 1 is solved here.