20. Is quadrilateral Q a square?
(1) The sides of Q have the same length.
(2) The diagonals of Q have the same length.
This is a Qn from the ds collections(ds.zip-Section 1) i got in this site.In the answer collections its wriiten its C.
But i got the answer is E.bcos the quadilateral can have all its four sides equal without the angles being 90 degrees. Correct, it can be a rhombus!
Square has 4 sides of equal lengths with all its angles 90 degrees.ISnt it the definition of square? Correct. This also means that diagonals of a sqaure are of equal length!
can someone explain this?
I'm not sure whether you have considered 1 & 2 together. From your explanation, it looks like you are considering only choice 1.
If you consider 1 & 2 together, you will get the answer!
'C' is the correct answer.
PS: Please post Quant question in Quant section of the forum!