Question

The edge of three cubes are 6m, 8m and 10 cm. Find the edge of cube, who is melted by them.

Answer 1

THANKS FOR THE QUESTION !

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SURFACE AREA OF CUBE :

6 * ( SIDE ) ^ 2

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SURFACE AREA OF CUBE WITH EDGE 6M :

6 * ( 6 ) ^ 2

6 * 36

216 M^2

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SURFACE AREA OF CUBE WITH EDGE 8 M :

6 * ( 8 ) ^ 2

6 * 64

384 M^2

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SURFACE AREA OF CUBE WITH EDGE 10 M :

6 * ( 10 ) ^ 2

6 * 100

600 m^2

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ADD ALL THE SURFACE AREAS :

216 + 384 + 600 M^2

1200 M^2

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SURFACE AREA = 6 * ( SIDE ) ^ 2

1200 = 6 * ( SIDE ) ^ 2

( SIDE ) ^ 2 = 1200 / 6

( SIDE ) ^ 2 = 200 M^ 2

SIDE = √ 200 M

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√200 = 14.14....

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SIDE OF NEW CUBE = 14.14 m

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THANKS AGAIN !