x2+y2-32 what is squre root of five
I.x2−7x+12=0 II.y2−12y+32=0
In a trapezium ABCD, if AB || CD then (AC2+BD2) = ?
(a) BC2+AD2+2BC.AD
(b) AB2+CD2+2AB.CD
(c) AB2+CD2+2AD.BC
(d) BC2+AD2+2AB.CD