Conditionals

[Simone]

I took a test and got this wrong and I don't know why.
Refer to the statement : Every isosceles triangle is a polygon with two sides of equal length
Write the statement as a conditional:
I wrote: If a figure is a polygon with 2 sides of equal length then it is an isoceles triangle.
Is the conditional true or false? I wrote: false
Write the converse of the conditional:
I wrote: If a figure is an isosceles triangle then it is a polygon with two sides of equal length.
Is the conditional true or false? I wrote: true
Where did I go wrong? My geometry teacher is out on medical leave and the sub is not very good at explaining things.
Please help me! Thanks!

 

[stapel]

Refer to the statement : Every isosceles triangle is a polygon with two sides of equal length

In other words (as a conditional), "if the object is an isosceles triangle, then the object is a polygon and the object has two sides of equal length."

Write the statement as a conditional:
I wrote: If a figure is a polygon with 2 sides of equal length then it is an isoceles triangle.

Check your book for the definitions of "conditional" and "converse". You have written the converse instead, which is clearly not true. (A square would be one example which disproves your converse.)

Note: This is not a "deep" or "conceptual" topic. Just learn the definitions, and you should do just fine! :wink:

Eliz.

 

[Simone]

If you read my original post, the question asked if it was true or false and I wrote false. My problem is I don't understand why my conditionals are wrong. I got the true and false part correct.

 

[stapel]

If you read my original post, the question asked if it was true or false and I wrote false. My problem is I don't understand why my conditionals are wrong. I got the true and false part correct.

I did read your original post; I even quoted it.

In reply, I stated what the conditional and the converse actually were, gave an example showing which one was "false", pointed out where you'd probably gone wrong, suggested a solution, and provided a lesson link which explained the topic.

I apologize that this was so insufficient to your needs as to appear to you to be completely and insultingly off-topic. Please be assured that this was not my intention. But I'm afraid I can't imagine what other information you need, when you have the corrected answer, an explanation of the probable error, a useful counter-example, and a topical lesson containing the necessary information to understand the solutiuon. So kindly please reply with specific criticism. Thank you.

Eliz.

 

[Simone]

I'm sorry I offended you. That was not my intention. Obviously I'm more confused than I thought.