Answer:
A ≈ 102.0 cm²
Explanation:
the area (A) of the triangle is calculated as
A = × b × c × sinA ( substitute the given values )
A = × 18 × 22 × sin31° = 9 × 22 × sin31° = 198 × sin31° ≈ 102.0 cm²
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× b × c × sinA ( substitute the given values ) × 18 × 22 × sin31° = 9 × 22 × sin31° = 198 × sin31° ≈ 102.0 cm²