A builder makes staircases where each step is 29 cm long and rises 18 cm so people dont trip. Every staircase has a stringer - a diagonal support connecting all the steps. What is the length of the stringer of the staircase?

Let x represent length of the stringer of the staircase.

We have been given that a  builder makes staircases where each step is 29 cm long and rises 18 cm so people don't trip. Every staircase has a stringer - a diagonal support connecting all the steps. We are asked to find the length of the stringer of the staircase.

The length of the stringer of the staircase will be equal to diagonal of right triangle with two legs 29 cm and 18 cm.

Using Pythagoras theorem, we will get:

Now we will take square root of both sides of equation.

Since length cannot be negative, therefore, the length of the stringer of the staircase would be approximately 34.13 cm.

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step-by-step explanation:

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

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