Review

Bob · 2013-09-25 03:19:08

hi

See below for my graph. What did you get?

Bob

Good news about the other work.

bobbym · 2013-09-25 03:24:13

Hi;

Congratulations for the 10.

For that problem I would not choose F.

demha · 2013-09-25 03:25:54

Hi Bob,
Now seeing your image, I would go with D. But wouldn't it be considered as 4 right triangles that meet at a right angle?

bobbym · 2013-09-25 03:28:06

If you counted the exterior angles too. That is not one of the choices.

Bob · 2013-09-25 03:58:34

hi demha,

I think you need to forget completely about the earlier question, where the answer was a rhombus. Start afresh with the four points.

If you plot them, look at the result and then join up, you get a rhombus. But I don't think that is what they expect you to do. I think I've met a similar Comp H question before like this. They expect you to join point one to point two, two to point three, three to point four, and finally back to point one again. If you do it like that you don't get a rhombus at all. You get what .... ????

The question doesn't make this clear but if rhombus was marked wrong then I recommend you go with ........ you tell me.

Bob

demha · 2013-09-25 11:11:48

It looks like a tall diamond. If cut in half, it can make two triangles.

Bob · 2013-09-25 19:40:33

Calling it a tall diamond is just another way of saying rhombus. You are seeing lines that are not there. The definition of a rhombus requires it to have four sides. What you have does NOT have four sides.

http://www.mathsisfun.com/definitions/rhombus.html

Earlier you said you would try answer D. That is what I would choose.

Bob

Last edited by Bob (2013-09-25 19:41:50)

demha · 2013-09-26 01:54:30

Alright so I sent in the my revision and got everything correct. Thanks all

I have another lesson I need help with. Would it be better to post here or make a new topic?

bobbym · 2013-09-26 03:41:54

New topic is best.

Bob · 2013-09-26 03:42:40

Great news, well done!

Up to you where you post. I'll find it.

Bob

MathsIsFun · 2016-09-03 10:37:55

Compuhigh.com have asked that we remove this topic "in order to ameliorate the harm to later students who may find the question and answer in an internet search".

I have responded to them "I am awaiting permission from two forum members ... seems a shame as the student was very engaged in the process and learned a lot with members help, as would others visiting the page. There are likely to be many places on the internet (facebook, reddit, etc) where your students will find answers to previous questions, it seems easier to simply change your questions (even a little) every year."

Ignoring many arguments (and a heavy heart), it simply seems like a nice gesture to Compuhigh to remove it.

With your permission anonimnystefy and bob?

Bob · 2016-09-03 19:08:55

hi MathsIsFun

Thanks for asking. I, too, am reluctant to lose this thread, for the same reason. There is so much that I could also say about their course assessment method, but I'll 'bite my tongue' and stay quiet. Yes, you have my permission.

Bob

ps. see also pm

Math Is Fun Forum

#26 2013-09-25 03:19:08

Re: Review

#27 2013-09-25 03:24:13

Re: Review

#28 2013-09-25 03:25:54

Re: Review

#29 2013-09-25 03:28:06

Re: Review

#30 2013-09-25 03:58:34

Re: Review

#31 2013-09-25 11:11:48

Re: Review

#32 2013-09-25 19:40:33

Re: Review

#33 2013-09-26 01:54:30

Re: Review

#34 2013-09-26 03:41:54

Re: Review

#35 2013-09-26 03:42:40

Re: Review

#36 2016-09-03 10:37:55

Re: Review

#37 2016-09-03 19:08:55

Re: Review

Board footer