Question

Find the surface area and the volume of a rectangular solid measuring 5m by 4m by 3m.Also find the length of a diagonal

Answer 1

total surface area of cuboid
= 2(lb+bl+lh)
=2(5×4+4×3+3×3)
=2(20+12+9)
=2×41
=82 sq.m.

volume of cuboid
=lbh
=5×4×3
=60cu.m.

length of diagonal of cuboid