Question

3. The total surface area of a cuboidal room
is 100 square metres and its lateral surface
area is 36 square metres. What is area of
its floor?
(2 Points)
16 square metres
64 square metres
32 square metres
8 square metres​

Answer 1

Answer:

Given that l=20cm, b=12cm, h=9cm

∴T.S.A=2(lb+bh+lh)

=2[(20×12)+(12×9)+(20×9)]

=2(240+108+180)

=2×528

∴T.S.A=1056cm

2

Step-by-step explanation:

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