A tube of a metal 7cm edge is melted and caste
into a cuboid whose base is 3.50 cm * 0.50 cm
Find the height of cuboid
Also find the surface area of cube and cuboid
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Answer:
Edge of the cube, a = 7cm
Lenght , L of the cuboid = 3.50 cm
Breath , B of the cuboid = 0.50 cm
Height , H of the cuboid = ?
Step-by-step explanation:
Volume of a cuboid = l × b × h
- =3.50×0.50×h
h = 3.50 × 0.50
= 1.75
A/Q,
Surface area of the cube = 6a²
= 6×7²
= 294 cm²
Surface area of the cuboid
= 2(lb + bh + hl)
= 2(3.50×0.50 + 0.50×1.75 + 1.75×3.50)
= 17.5 cm²
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