Answer:
First of all draw a base line
then, get a compass and extend it as needed for the base of triangle
after that, adjust the length of compass to 2 cm approximately
then at both end points of base draw angle of 60° to 75° ( because you asked for a larger triangle )
then draw out a straight line from the angle you made and intersect both of the lines then you get the third point.
Now, boom your triangle is ready..