Sia

Hello 杺怡! It sounds like you have some geometry exercises to work on. Since the image contains two right-angled triangles, let's focus on what you might need help with regarding them.

If you have specific questions about the triangles, such as finding their areas, calculating the lengths of their sides, or understanding the properties of right-angled triangles, feel free to share! 

For example, if you want to find the area of a right-angled triangle, you can use the formula:

$$\text{Area} = \frac{1}{2} \times \text{base} \times \text{height}$$

Let me know what you need help with, and I'll be happy to assist you!