A) \[\sqrt{xy}\]
B) \[\frac{2xy}{x+y}\]
C) \[\frac{\left( x+y \right)}{2}\]
D) \[\frac{1}{4}(x-y)\]
Correct Answer: C
Solution :
(c): Here as ABCD is trapezium So, \[EF=\frac{1}{2}\left( AB+DC \right)\] \[\Rightarrow \] \[EF=\frac{1}{2}\left( x+y \right)\] \[\therefore \]\[\left\{ AB=y,\text{ }DC=x \right\}\]You need to login to perform this action.
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