# Ex.14.1 Q10 Symmetry - NCERT Maths Class 7

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## Question

What other name can you give to the line of symmetry of –

(a) an isosceles triangle?

(b) a circle?

## Text Solution

**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.

**Reasoning:**

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.

**Steps:**

- Median
- Diameter