Question

guys please help to solve this maths problem plzzz plzzz
question:A cylindrical pillar in 50 m in height. find the cost of painting the curved surface of the pillar at the rate of rs:12.50 per .
${m}^{2}$
​

Answer 1

Answer:

H=3.5 m, R=

2

50

=25 cm =

100

25

=0.25 m

⇒CSA=2πrh=(2×

7

22

×0.25×3.5) m

2

=5.5 m

2

⇒Cost of painting 1 m

2

area = Rs.12.50

⇒Cost of painting 5.5 m

2

area

= Rs.5.5×12.50

= Rs.68.75

Step-by-step explanation:

I hope it is help full

Answer 2

Step-by-step explanation:

$\\ Given:</p><p></p><p> \\ H=3.5 m, \\  R=250=25 cm =10025=0.25 m</p><p></p><p></p><p> \\ ⇒CSA \: = \: 2πrh \\ =(2×722×0.25×3.5) m2</p><p></p><p></p><p> \\ =5.5 m2</p><p></p><p>b</p><p> \\ ⇒Cost \: of \: painting  \: 1 m \: 2 area  \\ =  \: Rs.12.50</p><p></p><p></p><p> \\ ⇒Cost \: of \: painting 5.5 m2 area </p><p></p><p></p><p> \\ = Rs.5.5×12.50</p><p></p><p></p><p> \\ = Rs.68.75</p><p></p><p></p><p></p><p>$

Hope it helps...✅️✌️

Ignore <p> simbole