Convert the following angle to degrees, minutes, and seconds form. $\alpha =-{89.369}^{\circ }$
The answer is
(Simplify your answers. Round to the nearest second as needed.)

Step 1 ：Given the angle $\alpha =-{89.369}^{\circ }$.

Step 2 ：The whole number part of the decimal degree is the degrees, so the degrees are $-89$.

Step 3 ：Next, we multiply the decimal part by 60 to get the minutes. The decimal part is $0.369$, so the minutes are $0.369\times 60=22.14$. The whole number part of this result is the minutes, so the minutes are $22$.

Step 4 ：Then, we multiply the decimal part of the minutes by 60 to get the seconds. The decimal part is $0.14$, so the seconds are $0.14\times 60=8.4$. We round this to the nearest second to get $8$ seconds.

Step 5 ：Finally, we combine the degrees, minutes, and seconds to express the angle in degrees, minutes, and seconds form. The angle $\alpha =-{89.369}^{\circ }$ is equivalent to $-{89}^{\circ }{22}^{\prime }{8}^{″}$.

Step 6 ：$\boxed{{\displaystyle -{89}^{\circ }{22}^{\prime }{8}^{″}}}$ is the final answer.