Question

PLEASE SOLVE QUESTION 10.

Answer 1

Hola User________________

〽⭐Here is Your Answer..!!!
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↪Actually welcome to the concept of the MENSURATION..

↪Basically here as given ...

↪The Lenght of the side of a individual square = 4 cm

↪thus here after fusing it into a big cube ...

↪The EDGE LENGTH OF THE NEW BIG CUBE = 2 times the edge of the old small cube ..

↪there fore New edge length = 2 × 4 = 8 cm

since the Length will be L = 8 cm , height will be H= 8 cm but the breadth will be B = 4 cm

↪...Now since we know that
the total SURFACE AREA OF A CUBOID = 2 ( LB + BH + LH )

↪since L = 8 cm , B =4 cm and H = 8cm

↪thus T.S.A = 2 ( 8 (4) + 4 (8) + 8 (8) ) ===》 256 cm^2 ...

↪thus the T.S.A OF THE NEW CUBOID = 256 cm^2

↪NOW COST OF PAINTING IS Rs. 32 / cm^2

↪Thus cost of painting the whole cube = T.S.A × RATE

↪=====》 256 × 32== 》 Rs. 8192 /-

↪Thus the total expenditure on painting is Rs. 8192/-
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↪〽Hope it helps u....☺

Answer 2

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