The answer is plane because it is a two dimensional figure
Given:
The function is:

To find:
The value of
.
Solution:
We have,

Putting
, we get



On combining like terms, we get


Therefore, the required function is
.
Answer:
77.6m (3 s.f.)
Step-by-step explanation:
Please see the attached pictures for full solution.
The length of side A is 194