Thursday

December 18, 2014

December 18, 2014

Posted by **Jiskhaa** on Sunday, January 15, 2012 at 5:04pm.

Eight circular holes, each of diameter 3m are cut in the sheet, so that none of the holes overlap. Calculate the volume of metal remaining, correct to 3 decimal places (Take pi=3.142)

P.S. Working out please

- Maths -
**Reiny**, Sunday, January 15, 2012 at 5:23pmvolume without holes = 32(16)(.012) = 6.144 m^3

each hole = π(1.5)^2 (.012) = .027π

so 8 holes = .216π m^3

remaining volume = 6.144 - .216π = 5.47

( I used π on my calculator, if you got it, why not use it ?)

**Answer this Question**

**Related Questions**

Maths - Hi im doing measurement at skool at the moment and i cant quite ork out ...

Chemistry - a sheet of metal is 97.4 mm wide and 59.4 mm long. if it weighs 9....

math - A rectangular sheet of metal, of area 440 sq.cm is folded into a cylinder...

Math - A rectangular piece of metal with 4 equally sized circular holes have a ...

maths - from a rectangular piece of metal sheet of length and breadth 1.60 m and...

Math - Sam needs to cut a piece of sheet metal into 8 pieces. All the cuts are ...

Math - A rectangular piece of metal with 4 equally sized circular holes have a ...

Physics - A die is designed to punch holes of radii 2.17 x 10-2 m in a metal ...

Physics, Please Help - A 5.7 cm thick layer of oil (n=1.46) is sandwiched ...

math - A circular piece of sheet metal has a diameter of 20 in. The edges are to...