A box is in the shape of a cuboid. If its length, breadth,and height are 12cm, 10cm and 9cm respectively, find its T.S.A (total surfacearea).Find the total surface area (T.S.A) of a wooden box whose shape is of a cube of edge 21 cm
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Answer:
length = 12cm
breadth = 10cm
height = 9cm
TSA = 2(lb+bh+lh)
=2[(12×10)+(10×9)×(12×9)]
=2(120+90+108)
=2×318
=636cm²
edge = side = 21cm
TSA = 6a²
=6×(21)²
=6×21×21
=2646cm²
Step-by-step explanation:
hope it helps...edge means side...
have a great day ahead.
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