Answer :

carlosego
The area of the triangle is:
 A1 = (1/2) * (8.4) * ((1/2) * (8.4) * (tan (60)))
 A1 = 30.55337625
 The area of the square is:
 A2 = (8.4) * (8.4)
 A2 = 70.56
 The surface area is given by:
 A = 4A1 + A2
 A = 4 * (30.55337625) + (70.56)
 A = 192.773505
 Rounding off we have:
 A = 192.8 yd ^ 2
 Answer:
 A = 192.8 yd ^ 2
 option 2

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