Question

The dimensions of a cuboid are 10 cm by 9.5 cm by 8 cm. Find i) its volume ii) its surface area iii) the surface area of the four walls iv) the length of a diagonal

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