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anonymous
 one year ago
Which set of shapes contains members that are always similar to one another?
anonymous
 one year ago
Which set of shapes contains members that are always similar to one another?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0trapezoids isosceles triangles equilateral triangles rectangles pentagons

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Use the angles. If two polygons are similar, then all the pairs of corresponding angles are congruent.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Here are two trapezoids. They are drawn to scale. Are all pairs of corresponding angles congruent? dw:1435246347755:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0No. Just answer my question above for the trapezoids I drew.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0When two polygons are similar, you can enlarge or reduce one of them to fit exactly on top of the the one. Do these two trapezoids look like with an enlargement or reduction on one of them, one would fit exactly on top of the other one?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Equilateral triangles.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Right. That means my drawing shows an example of two trapezoids that are NOT similar. In other words, not all trapezoids are similar.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Now let's move on to isosceles triangles. dw:1435246772609:dw The two triangles are isosceles, but not similar.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0All equilateral triangles are similar.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435246848604:dw
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