Question

find the total surface area of the following cuboids.
(a)length =7cm,breath=4cm,height 3cm

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Answer 1

Answer:

2 (lb+bh+hl)

Step-by-step explanation:

2 (7×4+4×3+3×7)

2 (28+12+21)

2 (61)

122cm^2

Answer 2

Step-by-step explanation:

tsa = 2 (l*b+b*h+l*h)

2 (7*4+4*3+7*3)

2 (28+12+21)

2* 61

122