Question
Wed December 06, 2017 By: Tushar Gupta

what side x of this square?
 

Expert Reply
Arun
Thu December 07, 2017
begin mathsize 16px style In space the space given space figure space extend space CF space and space
put space perpendicular space from space straight B space to space this space extended space line
now space increment CXB space is space rt space increment
EF equals BX equals 3
CX equals CF plus FX equals 21
apply space pythagoras space to space find space BC
then space in space square
increment ABC space is space rt increment
by space pythagoras
2 straight x squared equals BC squared
space end style
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