To construct: Δ DEF where DE = 5 cm, DF = 3 cm and m∠ EDF = 90 .
Steps of construction:
(a) Draw a line segment DF = 3 cm.
(b) At point D, draw an angle of 90 with the help of compass i.e., ∠ XDF = 90 .
(c) Taking D as centre, draw an arc of radius 5 cm, which cuts DX at the point E.
(d) Join EF.
It is the required right angled triangle DEF.