TSA = 88 m²
4 m
6 m
h -?
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TSA = 88m²
breadth = 4m
length = 6m
height = h
TSA = 2 ( lb + lh + bh )
88 = 2 ( 6×4 + 6×h + 4×h )
88 = 2 ( 24 + 6h + 4h )
88 = 48 + 12h + 8h
88 = 48 + 20h
- ( 48 + 20h ) = -88 [ transposing ]
48 + 20h = 88
20h = 88 - 48 = 40
20h = 40
h = 40/20 = 2
therefore, the height is 2m
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