9th mathematics NCERT exercise questions with answers, Mathematics

Triangles – Exercise 7.4 – Class IX

Show that in a right angled triangle, the hypotenuse is the longest side. Solution: Let ABC is aright angled triangle, right angle at B i.e, ∟B = 90˚ Now, ∠A + ∠C = 90˚ Since the sum of ∠A and ∠B is equal to 90˚, then each ∠A and ∠B is less than 90˚ Therefore,… Continue reading Triangles – Exercise 7.4 – Class IX