Which of the following is point symmetric ?

Which of the following is point symmetric? (a) Equilateral triangle (b) Trapezium (c) Rectangle (d) None of these

Which of the following is/ are true ? (a) All triangles are similar. (b) All circles are similar. (c) All squares are similar.

Let A be a square matrix.Then which of the following is not a symmetric matrix -

Which of the following statements are true and which are false ? Every parallelogram is a rectangle .

Which of the following statements are true and which are false ? Every parallelogram is a rectangle.

Which of the following statements are true and which are false? (a) The diagonals of a parallelogram are equal. (b) The diagonals of a rectangle are perpendicular to each other. ( c) The diagonals of a rhombus are equal.

Give reasons for the following : (a) A square can be thought of as a special rectangle.(b) A rectangle can be thought of as a special parallelogram.(c) A square can be thought of as a special rhombus.(d) Squares,rectangles, parallelograms are all quadrilaterals.(e) Square is also a parallelogram.

The points (5,-4,2), (4,-3,1), (7,6,4) and (8,-7,5) are the vertices of a. a rectangle b. a square c. a parallelogram d. none of these

Give reasons for the following: (a) A square can be thought of as a special rectangle. (b) A square can be thought of as a special rhombus. ( c) A rectangle can be thought of as a special parallelogram. (d) A square is also a parallelogram.