Which of the followng statements are true and which false?
The set of all equilateral triangles is a subset of the set of all isosceles triangles.

Which one of the followng is true ?

Whether the following statement is true ? Justify your answer. The set of all isosceles triangles is contained in the set of all equilateral triangles.

Which of the following statement true(T) and which are false (F)? All whole numbers are natural numbers.

Whether the following statement is true ? Justify your answer. The set of all rectangles is contained in the set of squares.

Which of the following statement true(T) and which are false (F)? All natural numbers are whole numbers.

Write the negation of the following statement :- All triangles are not equilateral triangle.

Write the negation of the following statements All triangles are not equilateral triangle