Question

Find the Total Surface Area and the Lateral Surface Area of a cuboid wh
dimensions are
(1) length = 20 cm, breadth = 15 cm, height = 8 cm
(ii) length = 16 m, breadth = 12 m, height = 8.5 m
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Answer 1

Here is your answer in 56

Answer 2

Answer:

(1)TSA of cuboid =2(lb+bh+hl)

Here l=20cm,b=15cm,h=8cm

=2(20×15+15×8+8×20)

=2(300+120+160)

=2(580)=1160cm²

LSA of cuboid =2(l+b)h

=2(20+15)8

=2(35)8=2×35×8=560cm²

(2)TSA of cuboid =2(lb+bh+hl)

Here l=16m,b=12m,h=8.5m

=2(16×12+12×8.5+8.5×16)

=2(192+102+136)

=2(430)=860m²

LSA of cuboid =2(l+b)h

=2(16+12)8.5

=2(28)8.5=2×28×8.5=476m²