Question

1. Find the volume, the lateral surface area and the total surface area of
the cuboid whose dimensions are:
(i) length = 12 cm, breadth = 8 cm and height = 4.5 cm​

Answer 1

Answer:

432cm³ , 372cm² , 180cm²

Step-by-step explanation:

Volume of cuboid = L×B×H = 12×8×4.5

= 432cm³

TSA of cuboid = 2(lb+bh+hl) = 2(12×8+8×4.5+4.5×12) = 2(96+36+54)

= 2×186 = 372cm²

LSA of cuboid = 2h(l+b) = 2×4.5(12+8)

= 9×20 = 180cm²