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| 1. |
The dimensions of a cuboid are in the ratio of 2:3:4 and its total surface area is 280m2 . Find the dimensions. |
| Answer» N :-We KNOW thatTSA = 2(LB + BH + lh)280 = 2(2x × 3x + 3x × 4X + 2x × 4x)280 = 2(6x² + 12x² + 8x²)280 = 2(26x²)280 = 52x²280/52 = x²√5.3 = x2.3 = xTherefore,Length = 2x = 2 × 2.3 = 4.6 mBreadth = 3x = 3 × 2.3 = 6.9 mHeight = 4x = 4 × 2.3 = 9.2 m | |