would a figure with the height of 8 cm and base of 12 be similar to a figure with the height of 6 cm and base of 10?

No, the figures would not be similar because their corresponding side lengths are not proportional. The ratio of the heights is 8:6, which simplifies to 4:3. The ratio of the bases is 12:10, which simplifies to 6:5. Since the ratios are not equivalent, the figures are not similar.

true or false

False