Pls explain the top 3 sums urgently

Pls explain the top 3 sums urgently dimensions 24 flower m • IS m the each FQ = 2B - FS = given the

Dear Student,
Assuming digits as the image is not clear. You can simply solve this question according to your given digits. The solution to your first two questions is given below. For more queries, we request you to please post them in different threads for rapid assistance.
$$\begin{gathered} Question 1 \\ We have, \\ b1=16m \\ b2=12m \\ Area of cross-section=112 m^2 \\ Area of cross-section= Area of Trapezium \\ =\frac{1}{2}(sum of parallel sides)\times height \\ =\frac{1}{2}(b1+b2)\times height \\ 112=\frac{1}{2}(16+12)\times height \\ 112=\frac{1}{2}\left(28\right)\times height \\ height=\frac{112\times 2}{28} \\ height=\frac{224}{28} \\ height=8m \\ Hence, Depth of the pool is 8m \end{gathered}$$
Question 2

Hope this will help you
Regards