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8. Example 2 – Stairs - continued


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Last updated 26 October 2012 15:30 by NZTecAdmin

Life is never that simple. Sometimes the space available limits the number and height of the stairs.

Suppose we have to build a set of stairs that is 2.4 metres high. We have 3 metres of floor space to do it in. How close can we get to our perfect stair?

Firstly, we need to find out how many platforms we will have.
Each platform is 25cm and we have 300 cm (3m) space to do it in.
300 ÷ 25 = 12 platforms.
Dividing the height by 12 we get 240 ÷ 12 = 20cm. This is higher than our perfect stair but maybe we have missed something.
Drawing a picture never hurts!

The picture shows that we missed a step.
There are actually 13 heights to consider.
240 ÷ 13 ˜ 18.5cm
This is closer to our perfect stair but the step height will be a bit much for comfortable movement.

Comments

 

20 October 2016 07:33
I don`t understand that diagrams of those represent. I am not good at mathematical calculations but I am not able to understand that if we want to build a stairs what these diagrams will help us, so i am referring http://www.assignment-help-sydney.com/ blogs for supporting tips and articles to solve them. It the construction plan and it`s blue print can give us good idea I think so.
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