Answer:
B. No, Hannah should have used the ratio
![(adjacent)/(opposite)](https://img.qammunity.org/2021/formulas/mathematics/high-school/1imamka4l4juqiqo8mrozyoabalvvipwqj.png)
Explanation:
✍️The formula for calculating cotangent of an angle is given as:
.
The ratio,
, used by Hannah is the formula for calculating tangent of an angle.
Therefore, Hannah did not calculate the cotangent of the angle correctly.
She should have used, the ratio,
instead.