It is not necessary that every the figurespossess a heat or lines of symmetry in various figures.

You are watching: Which figure has exactly four lines of symmetry?

Figures might have:

No line of symmetry

1, 2, 3, 4 …… present of symmetry

Infinite lines of symmetry


Let us consider a list of examples and findout lines of the opposite in various figures:

1. Heat segment:


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In the figure there is one line of symmetry.The number is symmetric along the perpendicular bisector l.

2. One angle:


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In the number there is one heat of symmetry.The number is symmetric follow me the edge bisector OC.

3. One isosceles triangle:


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In the number there is one line of symmetry.The number is symmetric along the bisector that the upright angle. The median XL.

4. Semi-circle:


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In the figure there is one heat of symmetry.The figure is symmetric follow me the perpendicular bisector l. The the diameter XY.

5. Kite:


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In the figure there is one heat of symmetry.The figure is symmetric along the diagonal line QS.

6. Isosceles trapezium:


In the figure there is one line of symmetry.The figure is symmetric follow me the heat l joining the midpoints of 2 parallel sides abdominal muscle and DC.

7.Rectangle:


In the number there are two lines ofsymmetry. The number is symmetric follow me the currently l and m joining the midpoints ofopposite sides.

8. Rhombus:


In the number there are two lines of symmetry.The figure is symmetric along the diagonals AC and also BD the the figure.

9. Equilateral triangle:


In the number there are three lines of symmetry.The number is symmetric follow me the 3 medians PU, QT and RS.

10. Square:


In the number there are 4 lines ofsymmetry. The figure is symmetric follow me the 2diagonals and 2 midpoints ofopposite sides.

11. Circle:


In the figure there are boundless lines ofsymmetry. The number is symmetric follow me all the diameters.

Note:

Each continuous polygon (equilateral triangle,square, rhombus, regular pentagon, continual hexagon etc.) room symmetry.

The variety of lines of the contrary in a regularpolygon is same to the number of sides a regular polygon has.

Some numbers like scalene triangle andparallelogram have actually no currently of symmetry.

Lines of the contrary in letter of the English alphabet:

Letters having actually one line of symmetry:

A B C D E K M T U V W Y have one line of symmetry.

A M T U V W Y have vertical line of symmetry.

B C D E K have horizontal line of symmetry.


Letter having actually both horizontal and also vertical present of symmetry:

H ns X have actually two currently of symmetry.


Letter having no present of symmetry:

F G J l N p Q R S Z have neither horizontal nor vertical present of symmetry.


Letters having actually infinite present of symmetry:

O has actually infinite currently of symmetry. Infinite number of lines passes through the suggest symmetry around the center O through all feasible diameters.


Lines the Symmetry

● Related concepts

● direct Symmetry

● suggest Symmetry

● Rotational the opposite

● order of Rotational Symmetry

● types of symmetry

● Reflection

● enjoy of a suggest in x-axis

● reflection of a point in y-axis

● reflection of a allude in origin

● Rotation

● 90 level Clockwise Rotation

● 90 level Anticlockwise Rotation

● 180 level Rotation

7th Grade math Problems8th Grade mathematics PracticeFrom present of the contrary to residence PAGE


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