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Mathematics 23 Online
OpenStudy (anonymous):

Picture

OpenStudy (anonymous):

OpenStudy (anonymous):

Ok how does angle C equal 20 and PS is 5?

OpenStudy (anonymous):

Unkle it's not that hard come on...

OpenStudy (unklerhaukus):

there are 360° in a complete revolution, angle C is 1 eighteenth of the wayround \[\angle C=360°/18\]

OpenStudy (anonymous):

wait what so how its it 20 on there?

OpenStudy (unklerhaukus):

did you simplify \(\angle C =\frac{360°}{18}=\dots\)

OpenStudy (anonymous):

ohhh

OpenStudy (unklerhaukus):

\[36=2\times18\] \[360=2 \times 18\times10\]

OpenStudy (anonymous):

How would you find the area?

OpenStudy (unklerhaukus):

well the shape can be see as 18 of those little right angled triangle joined together, find the area of one then multiply by 18

OpenStudy (unklerhaukus):

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OpenStudy (anonymous):

ok wait

OpenStudy (anonymous):

I have a diferent problem on my notes.. Same shape but it says each side = 4

OpenStudy (anonymous):

What is the area.

OpenStudy (anonymous):

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