if the dimensions of a rectangular room at 10 m into into 9 M into 12 M then find the cost of painting its four walls at rupees 8% m
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Hi here is your answer,
Length of room = 10 m
Breadth of room = 9 m
Height of room = 12 m
Surface area of room =
= 2(lb+bh+hl)
= 2(10×9+9×12+12×10)
= 2(90+108+120)
= 2(318)
= 636 m
cost of four walls
=4×hl
= 4×12×10
= 480 m
so cost will be,
=480×8
Rs. 3840
plz mark as brainlest and thanks me
Length of room = 10 m
Breadth of room = 9 m
Height of room = 12 m
Surface area of room =
= 2(lb+bh+hl)
= 2(10×9+9×12+12×10)
= 2(90+108+120)
= 2(318)
= 636 m
cost of four walls
=4×hl
= 4×12×10
= 480 m
so cost will be,
=480×8
Rs. 3840
plz mark as brainlest and thanks me
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