Answer:
18m if you cut off the triangles and multiply 3×1 is 1.5+1.5 is 3, 5x3 is 15, 15 + 3 = 18
Answer
18m
Workings
A = ½×{(a+b)h}
= ½×{(7+5)×3}
= ½×(12×3)
= ½×36
= 18m
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