Someone Please HELP!!!

[Anchit 777]

The sides of a trapezium are 3^1/4 , 3^1/4, 3^1/4 and 2 x 3^1/4. If the area of the trapezium is the ratio of relative prime positive integers m & n. Find (m+n):


A> 5 B> 7 C> 9 D>13.

[firdaus117]

It's option D
Use the fact that the given trapezium is a cyclic quadrilateral.
Area of a cyclic quadrilateral= Square root of (s-a)( s-b)( s-c )(s-d) where a,b,c,d are sides and s=(a+b+c+d)/2

[Anchit 777]

Thanks a billion firdaus117 , I completely forgot that it was a cyclic trapezium.

Thanks again!!!


PS: Pls help me with my new question, posted above this one.