Question

If the measures of cuboidal room are 12 m X 8 m X 4 m then area of four walls is

(a) 80 sq. m
(b) 100 sq. m
(c) 160 sq. m
(d) 120 sq. m​

Answer 1

Step-by-step explanation:

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(c) 160 sq. m

The dimensions of room is 12×8×4

The Lateral surface area is

2h(l+b)

2(4)(12+8)

8×20=160m^2

Answer 2

Step-by-step explanation:

2h { l+b}

2×4 { 12+8}

8 × 20

160 sq. m