Fill in the blanks:
(i) A figure has ………….. symmetry if it is its own image under a reflection.
(ii) A kite has ………….. line(s) of symmetry.
(iii) A parallelogram has ………….. line(s) of symmetry.
(iv) The centre of rotation of an equilateral triangle is the point of intersection of its …………..
(v) The centre of rotation of a rhombus is the point …………..
(vi) A regular polygon of n-sides has ………….. number of lines of symmetry.
(vii) Angle of rotational symmetry in an equilateral triangle is …………..
(viii) Angle of rotational symmetry in a regular pentagon is …………..
(ix) If after a rotation of 45° about a fixed point the figure looks exactly the same, then the order of rotational symmetry is …………..
Solution:
More Solutions:
- If P and Q are any two points on a circle, then the line segment PQ is
- In the given figure, AB is a diameter of the circle
- Draw a circle of radius 2·7 cm. Draw a chord PQ of length 4 cm of this circle
- Draw a circle of radius 3·2 cm and in it make a sector of angle.
- In the adjoining figure, the tangent to a circle of radius 6 cm