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Class 7 Mathematics Length, Perimeter and Area: Surface Area

An open rectangular tank has a base measuring 2.0m by 1.5m. It has a height of 2.5m. The surface of the tank was painted. What was the total area painted?
A. 7.5 $m^2$
B. 11.75 $m^2$
C. 20.5 $m^2$
D. 23.5 $m^2$

(8m 18s)

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