Thread: Geometry:Similar Triangles

Just want to know if i got this right guys. Im trying very hard now and i got serious with school im getting good grades ! thanks guys.
But here i got this similar triangles questions. They are done... is just to know if im right


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These triangles are not similar. 4/12 is not equal to 20/15.

-Dan

PS Okay, I appear to be wrong. I'll check out why later.

Ah. I see now. That is a "y" not a 4. Please excuse.

Originally Posted by topsquark

These triangles are not similar. 4/12 is not equal to 20/15.

-Dan

Ratios

Yes, that's fine.

You can think of the sides of LMN are magnified by the exact same amount
to be the sides of PQR.

Let k be the magnification factor







Therefore



or

Originally Posted by Archie Meade

Yes, that's fine.

You can think of the sides of LMN are magnified by the exact same amount
to be the sides of PQR.

Let k be the magnification factor







Therefore



or

Thanks i knew i was getting good at this. Sorry for not pointing out it was a fraction

Note there was a typo in my post.

Originally Posted by Archie Meade

Note there was a typo in my post.

Sorry if i dont understand much but is TYPO an error?

yes, a writing error, I had written PQ a 2nd time instead of PR.

NP Just have to thank you !