A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
Ok, well I'm going to start at the beginnig of cramming for this test. Can anyone explain similar polygons? In my book there are a buncj=h of proportions, if that helps you kno0w how to explain this...
anonymous
 4 years ago
Ok, well I'm going to start at the beginnig of cramming for this test. Can anyone explain similar polygons? In my book there are a buncj=h of proportions, if that helps you kno0w how to explain this...

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0well they are the same shape for a start and corresponding sides are in the same proportion

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Ok, I know that they are the same shape, and I know how to cross multiply, but how do you get from the fact that they are the same shape, to that they are similar using proportions? If you can draw how, I would understand it better. Thanks!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327255677159:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the small triangle is similar to the large one corresponding angles are the same and sides in same ratio

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0How do you write that ratio?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327255917730:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0triangles ABC and ADE are similar so AD = DE = AE    AB BC AC so knowing length of 3 sides you can find one side

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0??? So, so if you are just given the shape, and the sides, how do you prove that they are similar?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0this is true for all similar polygons the areas can also be found using (in above example): AD^2 / AB^2 = area ADE / area ABC

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0triangles are proved to be similar if 2 corresponding angles are equal (therefore third is equal) or corresponding sides are in same proportion

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I get the first reason, but not the second. What about other shapes (rhombi, squares, etc)?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0a good site to explain is http://library.thinkquest.org/20991/geo/spoly.html

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0its equally true for all other polygons

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I feel a little bad for you having to explain this to a dumb person! Thanks for your help though!!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0it works both ways  if shape is same then corresponding sides are in same proportion and vice versa

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0It's starting to make sense now!!
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.