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Math Help - Trig word problems

  1. #1
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    Unhappy Trig word problems

    I'm new to trig and I missed the first three lessons because i was absent. I've done almost all of my homework but this one problem I just can't grasp

    A spiral staircase has 13 steps. Each step is a sector with a radius of 36 inches and a central angle of pi/7.

    Through what angle would you rotate by climbing the stairs? Include a fourteenth turn for stepping on the landing.

    okay, so I've gotten this far -

    14 steps
    radius = 36
    angle in radians = pi/7 (right?)
    angle in degrees = 25.7

    Basically all stated in the problem. HALP PLZ.
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  2. #2
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    Quote Originally Posted by getfresh View Post
    I'm new to trig and I missed the first three lessons because i was absent. I've done almost all of my homework but this one problem I just can't grasp

    A spiral staircase has 13 steps. Each step is a sector with a radius of 36 inches and a central angle of pi/7.

    Through what angle would you rotate by climbing the stairs? Include a fourteenth turn for stepping on the landing.

    okay, so I've gotten this far -

    14 steps
    radius = 36
    angle in radians = pi/7 (right?)
    angle in degrees = 25.7

    Basically all stated in the problem. HALP PLZ.
    14 \cdot \frac{\pi}{7} = 2\pi = one complete rotation

    radius doesn't matter
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  3. #3
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    Quote Originally Posted by skeeter View Post
    14 \cdot \frac{\pi}{7} = 2\pi = one complete rotation

    radius doesn't matter

    okay I got that now. and that didn't help me at all. suicide brb.
    What after that? I'M SO BRAINDEAD
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  4. #4
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    is it 50pi?
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  5. #5
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    Quote Originally Posted by getfresh View Post
    is it 50pi?
    what are you talking about? ... I gave you the solution in my last post.
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