Question

The sum of length breadth and depth of cuboid is 20 CM and it diagonal is 5 root 5 then find the surface area​

Answer 1

ANSWER

l+b+h=19

Diagonal=11 cm

l2+b2+h2=11

l2+b2+h2=121

Now,

l+b+h=19

(l+b+h)2=192

l2+b2+h2+2(lb+bh+hl)=361

121+2(lb+bh+hl)=361

2(lb+bh+hl)=240

Hence, the surface area of the cuboid is 240 cm2.

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Answer 2

Answer:

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