Question

find the lateral surface area and total surface area of cuboid of length 80 CM breadth 40 cm and height 20 CM​

Answer 1

Step-by-step explanation:

l=80cm,b=40cm,h=20cm

Therefore,

TSA = 2(lb+bh+hl)=2(80×40+40×20+80×20)=11200 cm

2

LSA = 2(l+b)h=2(80+40)20=4800 cm sqare

Answer 2

Step-by-step:

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:$\Longrightarrow$ The answer is 4800cm².

$\large\bold\star\purple{\boxed{\underline{Explanation:-}}}$

:$\Longrightarrow$ Given:-

:$\Longrightarrow$ L = 80cm, B = 40cm, H = 20cm.

:$\Longrightarrow$ Therefore,

:$\Longrightarrow$ T.S.A = 2(lb + bh + hl)

:$\Longrightarrow$ = 2(80 × 40 + 40 × 20 + 80 × 20)

:$\Longrightarrow$ = 11200cm².

:$\Longrightarrow$ L.S.A = 2(l + b)h

:$\Longrightarrow$ = 2(80 + 40)20

:$\Longrightarrow$ = 4800cm².

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