Question

find the surface area of a geometric box whose, length, breadth and height are respectively 18 cm, 8 cm and 1.8 cm.​

Answer 1

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✏Surface area of the geometry box

✏ 2(lb+bh+hl)

$= 2(18 \times 8 + 8 \times 1.8 + 1.8 \times 18) \\ = 2(144 + 14.4 + 32.4) \\ = 2(190.8cm {}^{2} ) \\ = 381.6cm {}^{2}$

Answer 2

Answer:

S.A = 2(lb+bh+hl)

Step-by-step explanation:

surface area of geomatric box = 2(18×8+8×1.8+18× 1.8)=2(144+14.4+102.4)=2×260.8=521.6