Question

The length, breadth and height of a rectangular parallelopiped box are 15 cm, 12 cm and 20 cm respectively. Let me write its total surface area. [Let me do it myself]

January 1, 2024

Answer

The total Surface area of a rectangular parallelopiped

= 2 (15 × 12+15 × 20+12 × 20) sqcm.

= 2 (180+300+240) sqcm = 2 × (720) sqcm

= 1440 sq cm.

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