To construct: ∆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 90° of 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.

Class 7 Maths Chapter 10 Exercise 10.3

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