Area and Volume Q: a paintbrush is 30cm long. It just fits diagonally inside a cylind

larahope

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Sep 6, 2016
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Hi there,

I have been stuck on this question: a paintbrush is 30cm long. It just fits diagonally inside a cylindrical paint tin. The tin is 24 cm high. What is the capacity of the tin to the nearest litre?

I understand that I will need to find the diameter and then the radius of the cylinder in order to answer this question, but I have no idea where to start.
 
Hi there,

I have been stuck on this question: a paintbrush is 30cm long. It just fits diagonally inside a cylindrical paint tin. The tin is 24 cm high. What is the capacity of the tin to the nearest litre?

I understand that I will need to find the diameter and then the radius of the cylinder in order to answer this question, but I have no idea where to start.

302 = 242 + 182
 
Hi there,

I have been stuck on this question:
A paintbrush is 30cm long. It just fits diagonally inside a cylindrical paint tin.
The tin is 24 cm high. What is the capacity of the tin to the nearest liter?

Did you make a sketch?

Code:
.

     * - - - *
     |\      |
     | \     |
     |  \30  |
  24 |   \   |
     |    \  |
     |     \ |
     |      \|
     * - - - *


 
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