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Mathematics 8 Online
OpenStudy (anonymous):

What other shapes(like the one in the picture) can I use the 30 60 90 rule with?

OpenStudy (primeralph):

Picture?

OpenStudy (anonymous):

hold on

OpenStudy (anonymous):

OpenStudy (anonymous):

Can you do the same if the big triangle was replaced by a hexagon?

OpenStudy (unklerhaukus):

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OpenStudy (unklerhaukus):

|dw:1371922242484:dw|

OpenStudy (anonymous):

|dw:1371922275571:dw|

OpenStudy (unklerhaukus):

|dw:1371922263872:dw|

OpenStudy (anonymous):

oh okay!

OpenStudy (unklerhaukus):

yeah

OpenStudy (anonymous):

What other shapes can you do it with!

OpenStudy (anonymous):

Just a triangle and hexagon?

OpenStudy (anonymous):

I know you could do the 45 45 90 with squares

OpenStudy (anonymous):

@UnkleRhaukus ?

OpenStudy (unklerhaukus):

um, im sure there are other shapes,

OpenStudy (anonymous):

Pentagon?

OpenStudy (unklerhaukus):

hmm, the angles in a pentagon are not right

OpenStudy (anonymous):

okay. Thanks

OpenStudy (unklerhaukus):

maybe the equilateral triangle and regular hexagon are only the basic shape where the 30-60-90 rule is easily applied, .

OpenStudy (anonymous):

Yeah! I thought that tooo!

OpenStudy (anonymous):

who you like to help me with reviewing for my final?

OpenStudy (unklerhaukus):

I can help with one more, then i have to sleep

OpenStudy (anonymous):

Okay :D

OpenStudy (anonymous):

The beam from a lighthouse reaches a distance of 8 kilometers and spreads to a angle of 35 degrees. calculate the area covered by the beam from the lighthouse.

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