Asked by King
A solid cuboid ABCDEFGH with a rectangular base, AC = 13 cm, BC = 5cm and CH = 15cm.
(a) determine the length of AB,
AB =sqt(13^2 - 5^2)
= 12 cm
(b) Calculate the surface area of the cuboid.
SA = 2(12*5+ 12*15 +5*15)
= 2(60+180 +75)
= 2(315)
= 630 square centimeters
(c) Given that the density of the material used to make the cuboid is 7.6g/cm^3
, calculate its mass in kilograms.
= (630 *7.6)/1000
=4.788 kg
(d) Determine the number of the such cuboid that can fit exactly in a container measuring 1.5m by 1.2m by 1m.
(a) determine the length of AB,
AB =sqt(13^2 - 5^2)
= 12 cm
(b) Calculate the surface area of the cuboid.
SA = 2(12*5+ 12*15 +5*15)
= 2(60+180 +75)
= 2(315)
= 630 square centimeters
(c) Given that the density of the material used to make the cuboid is 7.6g/cm^3
, calculate its mass in kilograms.
= (630 *7.6)/1000
=4.788 kg
(d) Determine the number of the such cuboid that can fit exactly in a container measuring 1.5m by 1.2m by 1m.
Answers
Answered by
oobleck
(d) the cuboid is 15x12x5cm
The container is 1500x1200x1000 cm
so, what do you think?
The container is 1500x1200x1000 cm
so, what do you think?
Answered by
King
12*5*15
= 900
150*120*100
=1800000
= 1800000/900
= 2000
= 900
150*120*100
=1800000
= 1800000/900
= 2000
Answered by
oobleck
Hmmm. You seem to have lost some zeroes.
The container's dimensions (in cuboids) are 100x100x200 = 2,000,000
The container's dimensions (in cuboids) are 100x100x200 = 2,000,000
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