Thursday

December 18, 2014

December 18, 2014

Posted by **lea** on Friday, May 13, 2011 at 6:44am.

Help me pls..

- geometry -
**drwls**, Friday, May 13, 2011 at 7:25ampi*D^2*L is the same for both.

Therefore D1^2*L1 = D2^2*L2

and D1^3 = 2D2^3

Therefore D2/D1 = 1.260

For the areas,

A1 = pi*D1^2/2 + pi*D1*L

= (3/2)pi*D1^2 since D1 = L1

A2 = pi*D2^2/2 + pi*D2*L2

= (5/2)pi*D2^2 since D2 = 2L2

A2/A1 = (5/3)*(D2/D1)^2

= (5/3)*1.5873 = 2.646

**Answer this Question**

**Related Questions**

solid mensuration - A cylindrical tin can holding 2 gal.has its height equal to ...

math - A cylindrical jar with height 8 inches and diameter 6 inches is filled to...

calculus - right circular cylindrical tin cans are to be manufactured to ...

calculus - Use differentials to estimate the amount of tin in a closed tin can ...

Maths - a cylindrical tin with one end opened has diameter of 440mm and height ...

Math - A cylindrical tin can has a radius of 4.5cm and a height of 5 cm (a)What ...

Algebra - A manufacturer of tin cans wishes to construct a right circular ...

Algebra - A manufacturer of tin cans wishes to construct a right circular ...

Math 11 Surface area, Volume and Capacity - A cylindrical tin can has a radius ...

Math - A cylindrical can is made from tin.If it can be contain 1000 m^3 liquid ...