Respuesta :

mhanifa

Answer:

  • 30.42 in²

Step-by-step explanation:

Refer to attached

Area of the triangle formula:

  • A = 1/2bh

b is given: AB = 9 in

Line CD is added for h, finding its value:

  • CD/BC = sin 75°
  • h/7 = 0.9659
  • h = 7*0.966
  • h = 6.76 in

Then finding the area:

  • A = 1/2*6.76*9 = 30.42 in²
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