Point Symmetry

Q. Lattice points on a rectangular coordinate plane are defined as the points whose both the coordinates are integers. Find the number of lattice points in the region defined by |x|+|y|=5.

Q.

While solving the puzzle, Sonali remembered she had to do homework. Her homework was to find the length of EF. If AB = 5 cm and CA= 7cm, given that AD is the line of symmetry for the figure. Help her to finish her homework quickly.

1. 1cm
2. 2cm
3. 3cm
4. 1.5cm

Q.

Statement 1: Regular polygons have finite lines of symmetry.

Statement 2: Circle has infinite lines of symmetry.

Statement 3: Circle is a polygon with infinite sides.

Statement 4: Circle is a regular polygon with infinite sides.

Which of the above statements is/are incorrect?

1. 1

2. 2

3. 3

4. 4