14SymmetryElicitWarm-up1. Fill in the blanks.a.....letters in the English alphabet look the same after a half turn (180 degrees).b. All rectangles have an order of rotational symmetry ofc. All squares have an order of rotational symmetry of .d. The order of rotational symmetry of a triangle whose all sides are equal is ..2. The angle of symmetry of every figure is 360°. Yes/NoRiya, look atthis butterfly. Whydoes it have only onewing?Learning ObjectivesIn this chapter, you will learn about:• Symmetry• Line of symmetry• Figures with two and multipleslines of symmetry• Reflection symmetry•Lines of symmetry in geometricfigures and letters of the EnglishalphabetNo Pankaj, the butterfly hasboth wings. However, they arefolded together and are of the samesize. So, it appears as if there isonly one wing. The butterfly's wingsare symmetrical. Let us understandabout symmetryin detail.194

Chapter ReviewFLUENCY1-34-67-10ULTIPLE CHOICE QUESTIONS• How many lines of symmetry are there in a rectangle?2b. 1C.4Which of the following does not have any lines of symmetry?a. Squareb. Circle• Which of the following has two lines of symmetry?Rectangleb. Square• Which of the following letters has a vertical line of symmetry?a. BMParallelogramc. Equilateral triangleC.C• How many lines of symmetry are there in an isosceles triangle?a.3C.2• Which type of symmetry is found there in letter C?a. VerticalHorizontal• A regular pentagon (five sides) has.c. No lines of symmetrylines of symmetry.5a. lb. 2. An infinite number of lines of symmetry can be drawn in a ..a. squarebcirclec. pentagon• The number of lines of symmetry in a scalene (all sides unequal) triangle is:b. 2C.3). Which letter has both vertical and horizontal lines of symmetry?b. ACC.PROBLEM-SOLVINGJBJECTIVE QUESTIONSI. How many lines of symmetry does a butterfly have?.. Which English letter has an infinite number of lines of symmetry?. Name two polygons having both vertical and horizontal lines of symmetry.t. Draw any one figure with multiple l

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