Question

find the curved surface area of cuboid with 5m×4m×6m​

Answer 1

Answer:

2(xlb+bh+hl)

Step-by-step explanation:

2(5x4+4x6+6x5)

=2x(20+24+30)

=2x(74)

=148

Answer 2

Answer:

C.S.A. of a Cuboid = 2(lb+hl)--(I)

or

C.S.A. of a Cuboid = 2(bh+hl)--(II)

or

C.S.A. of a Cuboid = 2(bh+lb)--(III)

By (I), C.S.A. = {2(5×4+6×5)} sq. m.

By (I), C.S.A. = 100 sq. m.

By (II), C.S.A.= {2(4×6+6×5)} sq. m.

By (II), C.S.A.= 108 sq. m.

By (III), C.S.A.= {2(4×6+5×4)}sq. m.

By (III), C.S.A.= 88 sq. m.