If(l-60)m=(b+20)m=(h+25)m=60m,then the area of 4 walls of the room is

1.	If(l-60)m=(b+20)m=(h+25)m=60m,then the area of 4 walls of the room is
Answer» Answer: 11200m² Step-by-step explanation: l - 60 = 60 so l = 60 + 60 = 120 b + 20 = 60 so b = 60 - 20 = 40 h + 25 = 60 so h = 60 - 25 = 35 AREA of 4 walls means LATERAL surface area lsa = 2h(l+b) = 2 × 35 ( 120 + 40) = 70 × 160 = 11200 m²

Answer»

Answer:

11200m²

Step-by-step explanation:

l - 60 = 60 so l = 60 + 60 = 120

b + 20 = 60 so b = 60 - 20 = 40

h + 25 = 60 so h = 60 - 25 = 35

AREA of 4 walls means LATERAL surface area

lsa = 2h(l+b)

= 2 × 35 ( 120 + 40)

= 70 × 160

= 11200 m²

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If(l-60)m=(b+20)m=(h+25)m=60m,then the area of 4 walls of the room is

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