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Lecture 5 Assignment

 
 
ChenBlair的头像
Lecture 5 Assignment
ChenBlair - 2024年01月22日 Monday 20:21
 

Hi,

The areteem professor in our homework discussion did not go over problem 5.27. I'm not really sure how to start that one. I tried labeling the sides.

For 5.30, the areteem professor did not go over it as well. For part a, what is the formula for area of a hexagon. For part b, what is a dodecagon? And what is its formula?

Thanks


 
WangDr. Kevin的头像
Re: Lecture 5 Assignment
WangDr. Kevin - 2024年01月24日 Wednesday 00:14
 

Please specify the class you are taking.  Students from all classes post here and it could get confusing about which class the question came from.

In any case, it appears that this is about Math Challenge I-C Winter 2023-24 class.  Problem 5.27 has a bunch of isosceles right triangles  (45-45-90) in the diagram.  As a hint, what are the lengths of $BE$ and $EC$?

In 5.30, a regular hexagon can be divided into six equilateral triangles.  A dodecagon is a $12$-sided polygon. To calculate the area, you may want to connect its vertices with its center.


 
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