To find: the length of the arc formed by the outer edge of a step.
The length of arc is
Given:
It is given that s spiral staircase has
Formula Given:
where,
Calculation:
Calculating the length of the arc as:
Hence, the length of arc is
To find: that through what angle would rotate by climbing the stairs.
Given:
It is given that spiral staircase has
Calculation:
It is given that there are
Hence, the total angle rotation by the staircase and landing would then be equal to
So, a person climbing the spiral staircase would rotate at an angle of
To find: the square inches of carpeting would need to cover the
Given:
It is given that s spiral staircase has
Formula Given:
The area covered by a circular sector is:
where,
Calculation:
Now, there are a total of
Hence, the
Chapter 9 Solutions
Holt Mcdougal Larson Algebra 2: Student Edition 2012
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