Answer:
Option B is correct.
Step-by-step explanation:
Given: In a ΔABC, ∠B = 104° , a = 11 cm and c = 18 cm.
To find: area of the triangle.
We first find value of b using Law of cosines then using herons formula we find area of triangle.
Law of Cosines is a result used for calculating one side of a triangle when the angle opposite and the other two sides are known.
b² = a² + c² - 2ac × cos B
b² = 11² + 18² - 2 × 11 × 18 × cos 104°
b² = 445 - 396 × ( -0.24 )
b² = 540.04
b = 23.24 (nearest tenth)
Now, Herons Formula,
Semi perimeter, 


Area of the triangle = 96.02 cm²
Therefore, Option B is correct.