Construct ∆ABC, given m∠A =60°,m∠B =30°, and AB = 5.8 cm.

To construct: ∆ABC where m∠A = 60 , m∠B = 30 and AB = 5.8 cm.
Steps of construction:
(a) Draw a line segment AB = 5.8 cm.
(b) At point A, draw an angle ∠YAB = 60 with the help of compass.
(c) At point B, draw ∠XBA = 30 with the help of compass.
(d) AY and BX intersect at the point C.
It is the required triangle ABC.

Class 7 Maths Chapter 10 Exercise 10.4

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