Math, asked by Sneha037, 11 months ago

10 cylindrical pillars of a building are to be painted. if the diameter of each pillar is 50cm and the height is 4m then what will be the cost of painting them at the rate of 50 paisa per sqaure meter.

Answers

Answered by rti99

T.S.A. of 10 cylindrical pillers =
2πr(h+r). *10
2* 22/7*0.25 m (4m+0.25 m). *10
11/7 *4.25. *10
46.75/7. *10
6.67. *10
66.7 m2
Answer is 66.7 *50 =3350 paise=

Sneha037: buliding* sry

Sneha037: its*

rti99: I thought that they are individual.

Sneha037: no..... they're attached from d buliding.....its written that pillars of a buliding

rti99: so we will find its lateral S.A

Sneha037: it's not cmng.....pls help

rti99: find LSA , then *10 and find rate

Sneha037: itna to mujhe bhi pta h :-) lkn lsa ka ans nhi aa rha

Sneha037: vagi to prblm h

Sneha037: vahi*

Answered by priyanshujaat195

Answer:

31.4 answer hai is question ka

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