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