Lines of Symmetry for Regular Polygon

Q. Question 7 (a)
State the number of lines of symmetry for the following figures:
a) An equilateral triangle

Q.

Find the number of lines of symmetry of a circle.

1. $0$
2. $4$
3. $2$
4. Infinite

Q.

If a random diagram can be cut into fourteen equal parts, how many lines of symmetry does it have? Draw such a diagram. [3 MARKS]

Q.

How many lines of symmetry are there in an equilateral triangle?

___

Q.

Find the number of lines of symmetry for the following figures.
(a)

(b)

[3 MARKS]

Q. Two similar equilateral triangles are placed such that one side of each triangle coincides with the other. How many lines of symmetry does the new figure have?

Q. Complete the following table

Shape	Rough figure	Number of lines of symmetry
Equilateral triangle		3
square
rectangle
Isosceles triangle
Rhombus
circle

Q. Fill in the blanks using the correct word given in brackets:
All circles are .......... (congruent, similar).

Q.

Which of the following is a regular polygon ?

1. A square

2. A rectangle

3. A rhombus

4. A parallelogram

Q. An isosceles triangle has ___ line(s) of symmetry.

Q. State whether the following statement is true or false. Justify your answer:
" A straight line dividing a figure into two identical parts is necessarily a line of symmetry".

1. True
2. False