Answer:
Given that l=20cm, b=12cm, h=9cm
∴T.S.A=2(lb+bh+lh)
=2[(20×12)+(12×9)+(20×9)]
=2(240+108+180)
=2×528
∴T.S.A=1056cm
2
2000
Explanation:
mass =1.5kg
volume =25*15*2
=50*15=750cm^3=0.00075m^3
density =mass /volume
=1.5/0.00075
=2000
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Answers & Comments
Answer:
Given that l=20cm, b=12cm, h=9cm
∴T.S.A=2(lb+bh+lh)
=2[(20×12)+(12×9)+(20×9)]
=2(240+108+180)
=2×528
∴T.S.A=1056cm
2
Answer:
2000
Explanation:
mass =1.5kg
volume =25*15*2
=50*15=750cm^3=0.00075m^3
density =mass /volume
=1.5/0.00075
=2000