Respuesta :

Answer:

B

Step-by-step explanation:

Given a triangle with 2 sides and the included angle then area (A) is

A = [tex]\frac{1}{2}[/tex] ab sinC

here a = 7, b = 3 and C = 55°, thus

A = 0.5 × 3 × 7 × sin55° = 10.5 × sin55° ≈ 8.6 ft² → B

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