Qualification > Math

IGCSE MATHS Doubts

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Ghost Of Highbury:
every square is a rhombus, because it's a quadrilateral with four
congruent (equal) sides.  But there are rhombuses that are not square,
because their angles are not right angles.

Baladya:

--- Quote from: haris94 on May 11, 2010, 05:39:18 pm ---question 21 b) please

and can u tell me what is a plane symmetry
and if u hv seen any other questions with plane symmetry in the past papers pls tell me

Thank You

--- End quote ---
A plane of symmetry is like the line of symmetry but for 3D shapes (i.e a cube)

http://www.m-a.org.uk/cabri/issue-02/files/cube-symmetry-one.jpg

So it just cuts it into two IDENTICAL halves

haris94:

--- Quote from: Baladya on May 11, 2010, 05:44:41 pm ---A plane of symmetry is like the line of symmetry but for 3D shapes (i.e a cube)

http://www.m-a.org.uk/cabri/issue-02/files/cube-symmetry-one.jpg

So it just cuts it into two IDENTICAL halves

--- End quote ---

ok Thanks  
im surprised i never knew that   :o

diva_sparkles:
well actualy my teacher tht ths isnt in da syllabus!! n da examiners gav a mark 4 all da candidates as ths wasn in da syllabus!! :)

Fastal:
2009 may/june

22c
i know the answer is probably staring at me in the face, but please tell me :/

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