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May 08, 2021, 11:46:12 pm

Author Topic: Standard Math Q+A Thread  (Read 110667 times)  Share 

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anonymous_bean

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Re: Standard Math Q+A Thread
« Reply #690 on: May 03, 2021, 02:14:30 pm »
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That makes sense. Thank you for your help   :)

I was hoping to have some help with this question as well please. I think Iím right for part a. But I canít think of how to do part b?
« Last Edit: May 04, 2021, 10:03:33 am by anonymous_bean »

fun_jirachi

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Re: Standard Math Q+A Thread
« Reply #691 on: May 03, 2021, 03:22:55 pm »
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Consider what happens if you divide a regular hexagon into six regular triangles.

- Can you determine what type of triangle it is?
- Can you then determine each angle/side of the triangle?

Alternatively, consider also that there are six stakes around a point. Remember that angles around a point add up to 360 degrees, and hence you should be able to find the angle between two stakes and use the cosine rule to find the last side.

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anonymous_bean

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Re: Standard Math Q+A Thread
« Reply #692 on: May 03, 2021, 04:10:40 pm »
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Oh so basically because there are essentially 6 equal triangles. The angle I would need would just be 360/6  = 60

And the side I need is basically
A^2 = 2.4^2  + 2.4^2 -2 (2.4)(2.4)cos 60. Is that right?

Thank you so much for your help. I feel like I just had a light bulb moment. I thought I had to use the polygon degree formula. And for some reason why head went blank about what the cosine rule was called.  ;D



fun_jirachi

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Re: Standard Math Q+A Thread
« Reply #693 on: May 03, 2021, 04:20:47 pm »
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That would be correct :)

I thought I had to use the polygon degree formula. And for some reason why head went blank about what the cosine rule was called.  ;D

Well, you can - but it's a lot harder to navigate that way. If you're particularly good with geometry using the cosine rule is also unnecessarily complicated. Point is, there are loads of different ways suited to different people to get the same correct answer.
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anonymous_bean

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Re: Standard Math Q+A Thread
« Reply #694 on: May 03, 2021, 05:21:17 pm »
+1
Thank you again for the help. Otherwise I would still be thinking about what to do or even where to start  ;D