Answer:
303.2 squared cm
Step-by-step explanation:
first find the area of the square.
A=lw or A=side squared
A=12(8)
A= 96 squared cm
then find the area of the two triangles and double each answer
A=1/2 bh
A=1/2 8(10.9)
A=43.6
43.6 times 2 = 87.2 squares cm
A=1/2 bh
A=1/2 12(10)
A=60
60 times 2 = 120 squares cm
add all answers....96+87.2+120 = 303.2 squared cm
