If S is the set of squares and R is the set of rectangles, then `(SuuR)-(SuuS)` is

If R is the set of all rhombuses and S is the set of all squares, then S - R is "______" .

Let F_1 be the set of parallelograms , F_2 the set of rectangles, F_3 the set of rhombuses , F_4 the set of squares and F_5 the set of trapeziums in a plane. Then F_1 may be equal to :

Let F_(1) be the set of parallelograms, F_(2) the set of rectangles, F_(3) the set of rhombuses, F_(4) the set of squares and F_(5) the set of trapeziums in a plane. Then, F_(1) may be equal to

Let S be the set of all triangles and R^+ be the set of positive real numbers. Then the function f: SrarrR^+,f(Delta)=a r e aof Delta ,w h e r e in S , is

Let S be the set of all triangles and R^(+) be the set of positive real numbers,then the function f:S rarr R^(+),f(Delta)= Perimeter of Delta in S then ^( tf is )

Let F_(1) be the set of parallelograms, F_(2) the set of rectangle , F_(3) the set of rhombuses, F_(4) the set of squares and F_(5) the set of trapeziums in a plane. Then, F_(1) may be equal to

Let F_(1) be the set of parallelograms, F_(2) the set of rectangle , F_(3) the set of rhombuses, F_(4) the set of squares and F_(5) the set of trapeziums in a plane. Then, F_(1) may be equal to