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Mathematics 7 Online
OpenStudy (bookworm14):

triangles similarity, can u check it? thanks! my answer will be circled in the pic!

OpenStudy (bookworm14):

OpenStudy (anonymous):

It looks more like a side to me but it could be an angle. I'm guessing D. It doesn't appear to be an angle in the middle. @Bookworm14 Do you know what the sign on it stands inbetween the sides?

OpenStudy (bookworm14):

@jim_thompson5910 @mathmale

jimthompson5910 (jim_thompson5910):

|dw:1458869951418:dw|

jimthompson5910 (jim_thompson5910):

to start things off, angle BCF = angle GFH because these angles are vertical angles |dw:1458870090512:dw|

jimthompson5910 (jim_thompson5910):

also, because BC || GH, we know that angle BCF = angle FHG and angle CBF = angle FGH why? because they are alternate interior angles |dw:1458870228522:dw|

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