Question

find the cost of painting the sides of a water tank measuring 225 cm diameter and 375 in height at P20.00 per sq . m

Answer 1

so it's a cylinder?

Answer 2

I guess YES

Answer 3

i got million!!! O__O

Answer 4

LA cylinder = 2prh where p means pi
2p62.5(375) = 46875p = 147262.155637 cm^2

but now we have to convert cm to m

Answer 5

\[2 \pi r \left( h+r \right)\]

Answer 6

i got 35 per sq.m

Answer 7

from our handy-dandy converter: 1472.6216 m^2

Answer 8

then just multiply that by the cost:
1472.6216m x 20 = 29452.432

so, it would cost about P29452.43

Answer 9

Just the sides, or end caps too?

Answer 10

it said just the "sides"

Answer 11

121.5 is the radius of 225 diameter

Answer 12

it's 112.5. sheet.

Answer 13

i really need some sleep lol.

Answer 14

LA cylinder = 2prh where p means pi
2p112.5(375) = 84375p = 265071.880147 cm^2

converter: 2650.7188 m^2

cost: 2650.7188 x 20 = 53014.376

so it cost about P53014.38

Answer 15

that should be right lol

Answer 16

isn't 375 in inches?

Answer 17

no, it says "in height"

Answer 18

ah... took in to mean inches

Answer 19

it did..............i will not be doing that again lol

Answer 20

if it did*

Answer 21

Gotta be careful... I got 530.14
When you convert square cm to square m.... there are 1000 square cm in one square m

Answer 22

I converted all measurements to meters first, then calculated. Otherwise you have to deal with square units piling up.

Answer 23

i used an online converter for all my conversions

Answer 24

meh, whatever. i'm tired and should probably sleep lol good night :)

Answer 25

265071 cm^2 is not 2650.71 m^2, it is 26.5071 m^2

Answer 26

well, if the converter did it wrong, then whatever. :/

Answer 27

k... goodnight