Tolong dong besok dikumpulkan

[tex]1.p = \frac{f}{a} \ \: \\ \: \: \: \: \ \: \: = \frac{15 \: n}{15 \: cm} = 1 \frac{n}{ {cm}^{2} } [/tex]
2.p=p×g×h
=1000 kg/m3×10 N/kg×25 M
=250.000 N/M2