Answer:
If the area of the triangle ABC is
,then value of a is 27cm.
Solution:
Given Data:
Area of the triangle ABC is



To Find:
Value of a?
Step 1:


Step 2:

By Law of Sines

Simplify the above expression

--- eqn 1
Step 3:

Step 4:
Substitute the A, B and C value from the given Data.

Apply the Sin theta respective value.


From the above we finally got the value of "a" which is 27 cm.