(a) Here,

We have to draw a triangle which has only one line of symmetry.

Hence,

For the given case,

We will draw an iscoceles triangle.

Therefore,

The triangle can be drawn as:

(b) Here,

We have to draw a triangle which has only two lines of symmetry.

But,

We know that,

There exists no triangle with only two symmetry lines.

Hence,

For the given case,

No such triangle is possible.

(c) Here,

We have to draw a triangle which has only three lines of symmetry.

Hence,

For the given case,

We will draw an equilateral triangle.

Therefore,

The triangle can be drawn as:

(d) Here,

We have to draw a triangle which has no line of symmetry.

Hence,

For the given case,

We will draw a scalene triangle.

Therefore,

The triangle can be drawn as: