Answer:
h is approximately equal to 13.4
Explanation:
We can use the sine rule to solve this. We're told that the hypotenuse is 18 cm and we know that it's opposite a corner of 90 degrees. We also know that the corner opposite the side of length h has an angle of 48 degrees.
With that we can use the sine rule to solve for h:
![(h)/(sin(48)) = (18)/(sin(90))\\(h)/(sin(48)) = (18)/(1)\\h = 18 sin(48)\\h \approx 13.4](https://img.qammunity.org/2022/formulas/mathematics/high-school/48zwcfwc8uxlpregacnllh58k9k3mwfhe5.png)