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Mathematics 7 Online
OpenStudy (anonymous):

Help, Ill attach picture!

OpenStudy (anonymous):

# 59 please!

OpenStudy (anonymous):

????

OpenStudy (anonymous):

\[(120/360)*\pi*2^2-(1/2)*2*2\sin(120)\] there are different ways to prove that the area of the trianglee in the middle is (1/2*2*2sin(120)) the cross product means something to you ?

OpenStudy (anonymous):

is there a simpler way about it...

OpenStudy (eyust707):

That is the easiest way he just explained like youve done this before...

OpenStudy (eyust707):

Check it out|dw:1342497661932:dw|

OpenStudy (anonymous):

the cross product is the simplest , you can also do it with trigonomotry !

OpenStudy (eyust707):

We could find the area of this whole section right?|dw:1342497704361:dw|

OpenStudy (eyust707):

Its just a fraction of the area of the whole circle

OpenStudy (eyust707):

how much of the circle is that section I shaded???

OpenStudy (eyust707):

Its 120/360

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