Question

Van someone explain question 1-6 please

Answer 1

Equilateral Triangle - all sides equal and all angles equal
Isosceles Triangle - two sides equal andtwo angles equal
Scalene Triangle - no sides equal and no angles equal

so
1-6 a)
Isosceles Triangle - 1 Line of Symmetry
1-6b)
Equilateral Triangle-  3 Lines of Symmetry 
1-6 c)
A Parallelogram has 180 rotation symmetry, but no line of symmetry