Choose the lengths of the sides yourself and draw one equilateral, one isosceles and one scalene triangle.
Isosceles triangle :
In `triangle PQR`, l(QR) = 5.8 cm, l(PQ) = l(PR) = 4.7 cm

Explanation

The figure of triangle `triangle PQR`, `"l(QR) = 5.8 cm, l(PQ) = l(PR) = 4.7 cm"` is as given below