Math, asked by Hush4410, 11 months ago

A cube of metal of 5cm is melted and casted into acuboid whose base is 2.50cm 0.50 cm find height of the cuboidalso find surface areas of cube and cuboid

Answers

Answered by neerajjangid17
2

Step-by-step explanation:

cube side is 5cm

surface area= 6a^2 = 6×5×5 = 150 cm^2

base of cuboid is 2.50 cm and 0.50 cm

surface area of cube = surface area of cuboid

150 = 2(lb+ bh + hl)

150 = 2(2.50×0.50 +0.50×h +2.50×h)

150= 2(1.25+0.50h + 2.50h)

75 = 1.25 + 3h

75-1.25 = 3h

73.75 = 3h

24.58 = h

height of cuboid is 24.58

surface area of cuboid is 2(1.25+12.29+61.45)

= 2(64.99)

= 129.98 cm^2(approx)

surface area of cube is 150cm^2

Answered by sri288
0

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