Please help, will medal and fan.

Are all isosceles triangles similar? Justify your answer.

Question

Please help, will medal and fan.

Are all isosceles triangles similar? Justify your answer.

mrnood · Answer

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Both these triangles are isosceles

Have a look at what is meant by 'similar' and see if these meet any of those reasons

lcncjc · Answer

So not all of them are similar?

mrnood · Answer

Draw your own conclusion - and justify it

lcncjc · Answer

No. Some can be in completely different shapes and have all different angles. This makes it hard to state that they are ALL similar.

mrnood · Answer

Is it hard to state it - or incorrect?

lcncjc · Answer

both?

mrnood · Answer

it is easy to state it - but it would be incorrect to do so

mrnood · Answer

more formally you should look at teh states for similarity (SAS SSS etc) and show that the 2 triangles above do not necessarily meet ANY of them, therefore not ALL isosceles triangles are similar