Question

How to solve this please tell step by step for my revision fast! I will mark the first person As brainiest

Answer 1

Answer:

1)88 sq. cm 2)192 sq. cm

Step-by-step explanation:

Surface area of cuboid is 2(lb+ bh+ hl)

1) l=6cm b=4cm h=2cm

Surface area = 2(lb+ bh+ hl)

                      = 2(6*4+ 4*2+ 6*2)

                      = 2(24+8+12)

                      = 2(44)

                      = 88 sq. cm

2)l=4cm b=4cm h=10cm

Surface area= 2(lb+ bh+ hl)

                     =2(4*4+ 4*10+ 4*10)

                     = 2(16+40+40)

                      = 2(96)

                      =192 sq. cm