Question

the wall of a ceiling of a from Earth to be pain the Length breadth and height of a room are 4m,3m and 450 cm . find the cost of painting at 10 per square metre answer for this question​

Answer 1

$\huge{\boxed {\mathfrak \blue {\fcolorbox {yellow}{red}{AnSwEr}}}}$

Dimensions of wall

= length = 4cm

= breadth = 3m

= Height = 450cm= 4.5 m

Surface Area of wall

= 2 (lb + bh + hl)

= 2 (4×3 + 3×4.5 + 4.5×4)

= 2 (12 + 13.5 + 18)

= 2 × 43.5

= 87

Cost of painting

= 87 × 10

= 870 m sq

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Answer 2

${\huge {\underline {\underline {\mathfrak {\blue {♡Answer♡}}}}}}$

Dimensions of wall

= length = 4cm

= breadth = 3m

= Height = 450cm= 4.5 m

Surface Area of wall

= 2 (lb + bh + hl)

= 2 (4×3 + 3×4.5 + 4.5×4)

= 2 (12 + 13.5 + 18)

= 2 × 43.5

= 87

Cost of painting

= 87 × 10

= 870 m sq

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