(a) If a fan has a rotational symmetry of order 4, how many blades are there in the fan? (b) Name the quadrilateral which has both line and rotational symmetry of order more than 1. [2 MARKS]
Draw an equilateral ∆ of side 4.5 cm & construct all its lines of symmetry
a) How many lines of symmetry are present in the equilateral ∆
b) How many points of symmetry are present in the equilateral ∆