NCERT Solutions for Class 9 Maths Chapter 7 Triangles — Exercise 7.4

NCERT class 9 maths chapter 7 Triangles

Question 1:Show that in a right angled triangle, the hypotenuse is the longest side.

Exercise 7.4 maths class 9 Chapter 7 Triangles

Question 2:In Fig. 7.48, sides AB and AC of D ABC are extended to points P and Q respectively. Also, Ð PBC < Ð QCB. Show that AC > AB.

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Question 3:In Fig. 7.49, Ð B < Ð A and Ð C < Ð D. Show that AD < BC.

class 9 maths solutions Triangles

Question 4:AB and CD are respectively the smallest and longest sides of a quadrilateral ABCD (see Fig. 7.50). Show that Ð A > Ð C and Ð B > Ð D.

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Question 5:In Fig 7.51, PR > PQ and PS bisects Ð QPR. Prove that Ð PSR > Ð PSQ.

Question 6:Show that of all line segments drawn from a given point not on it, the perpendicular line segment is the shortest.