Find the cost of polishing a …
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Sia ? 4 years, 9 months ago
Diameter of the table-top = 1.6 m
{tex}\therefore{/tex} Radius of the table- top (r) = {tex}\frac{1.6}{2}{/tex}m = 0.8 m
{tex}\therefore{/tex} Area of thetable-top = {tex}\pi{/tex}r2
= 3.14 {tex}\times{/tex} (0.8)2
= 3.14 {tex}\times{/tex} 0.64
= 2.0096 m2
Cost of polishing the table-top per meter2 = Rs15
{tex}\therefore{/tex} Cost of polishing the complete table-top = Rs. 2.0096 {tex}\times{/tex} 15 = Rs. 30.144
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