length equal to bredth equal to height equal to 'x' find X and total surface area and lateral surface area is 64 CM ²
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Answer:
It is given that length =12 cm, breadth 8 cm and height =4.5cm
We know that
Volume of cuboid =l×b×h
Volume of cuboid =12×8×4.5
Volume of cuboid =432 cm
3
We know that
Lateral surface of a cuboid =2(l+b)×h
Lateral surface area of a cuboid =2(12+8)×4.5
Lateral surface area of a cuboid =2×20×4.5
Lateral surface area of a cuboid =180cm
2
We know that
Total surface area of cuboid =(Ib+bh+Ih)
Total surface area of cuboid =2(12××8+8×4.5+12×4.5)
Total surface area of cuboid =2(96+36+54)
Total surface area of cuboid =2×186
Total surface area of cuboid =372 cm
2a
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