Question

A cuboidal box is 5cm by 5cm by 4cm. Find its surface area

Answer 1

Total surface area

2(5×5+5×4+5×4)

=2(25+20+20)

=50+40+40

=130 cm

lateral surface area

2(l+b)×h

=2(5+5)×4

=20×4

=80cm

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Answer 2

Answer:

the answer is 130 c.m.^2

Step-by-step explanation:

the surface area of a cuboid is =2(lb+bh+lh)

                                                  =2(5.5+4.5+4.5)

                                                  =2(25+20+20)

                                                    =2(65)

                                                   =130