Answer:
Total surface area=228cm²
Step-by-step explanation:
Area of bottom(parallelogram)=12×12=144cm²
area of 1 triangle=1/2×8×12=48cm²
area of 3triangles=48×3=144cm²
Total surface area=144+144=228cm²
652 and 4
the product is the total
121.44
The reflection of the dots marked is on the opposite side at the same numbers and lines but with a different sign in front of the number.
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