Area of 4 walls of a cuboid 400 sq cm, its length is 15 cm and height is 8 cm. What is its bre adth (in cm)?
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aanya221:
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area of 4 wall room =lb+bh+lh
=400=15b+8b+15×8
=400-120=23b
280=23b
b=280÷23
b=12 .17cm
=400=15b+8b+15×8
=400-120=23b
280=23b
b=280÷23
b=12 .17cm
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