It is currently Sat Jan 20, 2018 2:54 pm

 All times are UTC

 Page 1 of 1 [ 6 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Bond maths pack 2, paper 2, question 2Posted: Wed Jul 28, 2010 1:33 pm

Joined: Mon Mar 15, 2010 4:52 pm
Posts: 162
Hello, can you advise if my son's answer to this question is also correct?

Read the following statement.

'A four-sided shape with opposite sides that are parallel and of equal length.'

What shape is being described?

DS answer is a square but Bond answer sheet says Rhombus. Since no reference is made to angles, isn't a square equally valid?

Top

 Post subject: Re: Bond maths pack 2, paper 2, question 2Posted: Wed Jul 28, 2010 3:18 pm

Joined: Tue Jul 27, 2010 3:19 pm
Posts: 6
Hi,

A square is a rhombus with right angles. So I would say your child is right.

Top

 Post subject: Re: Bond maths pack 2, paper 2, question 2Posted: Wed Jul 28, 2010 3:32 pm

Joined: Sat Sep 27, 2008 9:51 pm
Posts: 2337
Square is "a" correct answer but not "the" correct answer. An infinite number (rhombus) shapes fit the description, and only one of them is a perfect square. In other words, it's because no reference is made to angles that the answer is rhombus.

If the question was "a four sided shape with parallel sides and with every angle a right angle", "square" would likewise not be "correct".

Not a very good question IMHO, though - more a test of pedantic tendencies than intelligence.

Mike

Top

 Post subject: Re: Bond maths pack 2, paper 2, question 2Posted: Wed Jul 28, 2010 4:01 pm

Joined: Mon Mar 15, 2010 4:52 pm
Posts: 162
Thanks for your replies. I'll let this one pass because DS will never concede the point, semantics or not.

Top

 Post subject: Re: Bond maths pack 2, paper 2, question 2Posted: Wed Jul 28, 2010 4:29 pm

Joined: Sat Sep 27, 2008 9:51 pm
Posts: 2337
Well, I think he has a point. I vaguely recall coming across this question or something very like it in the 10-min books and Miss 1880 said square as well. I gave her the mark - I think it's a stupid question...

Mike

Top

 Posted: Wed Aug 04, 2010 3:48 pm

Joined: Sat Jul 31, 2010 3:31 pm
Posts: 132
My DD says: " Both answers are correct. This is because, technically, a square is a type of rhombus. If you stand a square on one corner and squash it at the two corners that stick out on the sides, you get a rhombus. So, a rhombus is a squashed square."

2 parallel sides which are equal in length necessarily give you a parallelogram when you add 2 more sides.

If all four sides are equal in length, then you get a special parallelogram called a rhombus.

If all four angles are equal, then you get a special rhombus called a square.

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 6 posts ]

 All times are UTC

#### Who is online

Users browsing this forum: No registered users and 4 guests

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum

Search for:
 Jump to:  Select a forum ------------------ FORUM RULES    Forum Rules and FAQs 11 PLUS SUBJECTS    VERBAL REASONING    MATHS    ENGLISH    NON-VERBAL REASONING    CEM 11 Plus GENERAL    GENERAL 11 PLUS TOPICS    11 PLUS APPEALS    11 PLUS TUTORS    INDEPENDENT SCHOOLS    11 PLUS CDs/SOFTWARE    11 PLUS TIPS    PRIMARY    SEN and the 11 PLUS    EVERYTHING ELSE .... 11 PLUS REGIONS    Berkshire    Bexley and Bromley    Birmingham, Walsall, Wolverhampton and Wrekin    Buckinghamshire    Devon    Dorset    Essex    Essex - Redbridge    Gloucestershire    Hertfordshire (South West)    Hertfordshire (Other and North London)    Kent    Lancashire & Cumbria    Lincolnshire    Medway    Northern Ireland    Surrey (Sutton, Kingston and Wandsworth)    Trafford    Warwickshire    Wiltshire    Wirral    Yorkshire BEYOND 11 PLUS    Beyond 11 Plus - General    GCSEs    6th Form    University