find the volume and th total surface area of cuboid (ii) l = 3.5 m, b = 2.6 m and h = 90 cm.
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Answer:
total surface area=2(lb+bh+hl)
=2(3.5×2.6+2.6×0.9+0.9×3.5)
(90cm=0.9m)(important)
=2(9.1+2.16+3.15)
=2(14.41)
= 28.82m2
Voulme=l×b×h
=8.19m3
Answered by
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Answer:
First convert height into cm to m
90cm = 90/100m
= 9/10m = 0.9m
L = 3.5
B = 2.6m
H = 0.9m
Volume = l×b×h
= 3.5×2.6×0.9
= 8.19m³
Total surface area = 2(lb+bh+lh)
= 2(3.5×2.6+2.6×0.9+3.5×0.9)
= 2(9.1+2.34+3.15)
= 2×14.59
= 29.18 m²
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