Question

Which MUST be a square?

Answer 1

This isn't another one of your super-tedious algebra problems is it? :>

Answer 2

I believe they all look like squares :I

Answer 3

But which one most represent a square

Answer 4

that's coz you need to see through tricks :>

Answer 5

but C is true...as all thee diagonals are equal...

Answer 6

right... so? lol

Answer 7

anyway... what does a four-sided figure need to be, to be a square? ^^

Answer 8

I know all must have 4 Right angles

Answer 9

it DOES have to have four right angles, don't it? ^^

but don't ALL rectangles also have four right angles? :>

Answer 10

yupp..but there corners have some deviation from def of a square..!and also in D two sides equal are given but no idea about other two,in A on corner is out of square and in B each four corners are shared by some other .so C gives appreciable ans by def of square.

Answer 11

Yes I suppose all rectangles Do have 4 right angles

Answer 12

and for any fig to be squre..its all sides must be equal...

Answer 13

silly zaibali.... have you drawn a perfect rectangle recently? ^^

Answer 14

ok.... non-square rectangle... ^^

Answer 15

Why does this have to be so difficult haha

Answer 16

but I'll bet my hat that its diagonals bisect each other, just like in figure C ^^

Answer 17

see the central angle of all the diagonal made with each other...in C all are at 45 degree...whats about here...???

Answer 18

Things that (individually) do NOT guarantee a quadrilateral is a square:
Four right angles
All sides are congruent

Things that DO guarantee a quadrilateral is a square:
diagonals are congruent

Answer 19

But don't ALL rectangles have congruent diagonals? :/

Answer 20

mister agent0smith... congruent diagonals must also be perpendicular for said four-sided-polygon to be a square, no? ^.^

Answer 21

Guys I am going to have to prove a rhombus to so :I

Answer 22

well, you can bet YOUR hat that one of these figures is definitely a rhombus ^^

Answer 23

Its a different question haha

Answer 24

well finish this one first >:(

which is your square? ^^

Answer 25

Um well could it be A?

Answer 26

Knowing that all sides are shown to be equal and knowing one angle is right that must mean that the rest of the angles must also be right angles?

Answer 27

It could... but IS it? ;)

confidence, lol ^^

Answer 28

all sides are congruent means it's a rhombus...
but how do you know it's a square? :)

Answer 29

oh you already answered that... lol ok
never mind

good job :P

Answer 30

Because I see the shape :(

Answer 31

Yeah I think only A is actually.

Answer 32

@agent0smith awsum :>
@aric200 that should never EVER be your reason....

Answer 33

I messed up earlier, good point peterpan. I was instinctively assuming "if they're perpendicular" but didn't write it.

Answer 34

I know I said that because that is my way of giving up on this problem...

Answer 35

remember it in your heart!!!!
rhombus with a right angle is a bloody SQUARE >:D

okay, i'm overdoing things

adventure? :)

Answer 36

Okay so it is A.. :?

Answer 37

you're still not sure of yourself? :D

Answer 38

I want to be

Answer 39

Im sure that they all appear to look like squares

Answer 40

Not sure on what one MUST BE A SQUARE

Answer 41

Sure enough, all of them COULD be squares but only one of them MUST be a square... and that's coz it's a rhombus with a 90 degree angle.

It's A.

Silly.

Answer 42

I said that and I gave my reason as to why I thought it was :/

Answer 43

I dislike you :D

Answer 44

No you don't. :P

Answer 45

I believe @agent0smith deserves the medal over me :D

Answer 46

fine.

Answer 47

:O nooooooooooooooo

Answer 48

@aric200 had the correct reasoning.