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
19
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=
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
its*
I thought that they are individual.
no..... they're attached from d buliding.....its written that pillars of a buliding
so we will find its lateral S.A
it's not cmng.....pls help
find LSA , then *10 and find rate
itna to mujhe bhi pta h :-) lkn lsa ka ans nhi aa rha
vagi to prblm h
vahi*
Answered by
10
Answer:
31.4 answer hai is question ka
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