A rectangular room is 6 m long 5m wide 4m high find the total surface area of the four walls
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Answer:
148m^2
Step-by-step explanation:
L=6
B=5
H=4
So,T.S.A.=2(lb+bh+hl)
=2(6*5+5*4+4*6)
=2(30+20+24)
=2(50+24)
=2(74)
=148m
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