Question

2. Find the surface areas of cuboids of the following dimensions.

(i) Length = 6 cm, breadth 4 cm and height 3 cm

(ii) Length 15 m, breadth = 10 m and height = 4 m

(iii) Length = 16 cm,breadth = 12 cm and height = 9 cm​

Answer 1

Answer:

1 =108 ,2 =500 ,3 =888

Step-by-step explanation:

formula of suface area 2(lb+bh+hl)

Answer 2

Answer:

i 108

ii500

iii888

Step-by-step explanation:

Formula used :2(lb+bh+lh)

1. 2(6×4+4×3+6×3) =2(24+12+18)=2×54=108cm^2
2. 2(15×10+10×4+15×4)=2(150+40+60)=2×250=500cm^2
3. 2(16×12+12×9+16×9)=2(192+108+144)=2×444=888cm^2

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