Ex.14.1 Q10 Symmetry - NCERT Maths Class 7
What other name can you give to the line of symmetry of –
(a) an isosceles triangle?
(b) a circle?
What is known?
Name of the shapes
What is unknown?
Another name can you give to the line of symmetry of an isosceles triangle & a circle.
As it is given in the question, you have to find out the other name for lines of symmetry of an isosceles triangle and a circle. We know that an isosceles triangle has one line of symmetry and this is a line segment joining a vertex to the midpoint of the opposing side, bisecting it. So, we can call it median and a circle has infinitely many lines of symmetry passing through the centre, so we can call it diameter.