
A pattern is shown.
a. Find the surface area of the pattern. Round the answer to the nearest square centimeter.
b. The metal from which the pattern is made weighs 7.85 kilograms per square meter of area. Find the weight of the pattern. Round the answer to the nearest hundredth kilogram.
Note: Since 100cm = 1 m, (100 cm)2 = 1 m2 or 10 000 m2 = 1 m2.

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