Construct an isosceles ΔPQR whose base measures 5 cm and each of equal sides measures 4.5 cm.
Steps of Construction
1. Draw a line segment QR= 5cm which is the base.
2. With centre Q and radius equal to 4.5 cm, draw an arc.
3. With centre R and the same radius is drawn another arc which cuts the previous arc at P.
4. Join PQ and PR.
Therefore, ΔPQR is the required isosceles triangle.