Test: Symmetry & Nets - 1 - Class 5 MCQ

• Each 90 degrees rotation of the given polygon returns to the original shape.
• so the polygon has an order of rotational symmetry of 4.

• Reflection symmetry is a type of symmetry where one-half of the object reflects the other half of the object.
• Option (a) fulfils this condition.

• A line of symmetry is defined as the line which divides the figure into two equal mirror images
• Hence from the above figure line L, line M, line N, line O are the lines of symmetry.

The net of a cone consists of the following two parts:

• a circle that gives the base; and
• a sector that gives the curved surface.

• From the above figure we can say that figure P and Q do not have line of symmetry.
• In option R and S , we can draw a line through the middle hence have a point of symmetry.
• therefire the correct answer is option D.

• The shape will look like its original only once after you rotate the shape 360 degrees.
• Hence, it's rotational symmetry is 1.

• From the above figure minimum 2 squares should be added so that line AB becomes a line of symmetry.
• 

• From the above figure, it can be shown that the square P should be shaded so that the above figure has a line of symmetry.

• The shape will look like its original only once after you rotate the shape 360 degrees.
• Hence, it's rotational symmetry is 1.

• Rotational symmetry of order 4 is in (b) and (c) because in these figures, in a complete turn of 4 number of times, the object would be looking exactly the same.
• However, (a) only has a rotational symmetry of 1.
• therfore the correct answer is option A