State in each case whether A ⊂ B or A ⊄ B.

A = {x : x is a square in a plane}, B = {x : x is a rectangle in the same plane}

State in each case whether A ⊂ B or A ⊄ B.

A = {x : x is a real number,}, B = {x : x is a complex number}

State in each case whether A ⊂ B or A ⊄ B.

A = {x : x is an isosceles triangle in the plane}, B = {x : x is an equilateral triangle in the same plane}

State in each case whether A ⊂ B or A ⊄ B.

A = {x : x is a triangle in a plane}, B = {x : x is a rectangle in the same plane}

State in each case whether A ⊂ B or A ⊄ B.

A = {x : x is an even natural number less than 8}, B = {x : x is a natural number which divides 32}