NCERT Solutions for Class 9 Maths Chapter 7 Triangles Exercise 7.2 Solutions

CBSE X Related Questions

  • 1.
    Prove that: $\frac{\tan \theta}{1 - \cot \theta} + \frac{\cot \theta}{1 - \tan \theta} = 1 + \tan \theta + \cot \theta$


      • 2.
        A chord of a circle, of radius 14 cm, subtends an angle of $60^\circ$ at the centre. Find the area of the smaller sector and perimeter of the smaller segment.


          • 3.
            PQ and PR are two tangents to a circle with centre O and radius 5 cm. AB is another tangent to the circle at C which lies on OP. If OP = 13 cm, then find the length AB and PA.


              • 4.
                Prove that $14 - 2\sqrt{3}$ is an irrational number, given that $\sqrt{3}$ is irrational.


                  • 5.
                    A bag contains 25 balls. Some of them are yellow and others are green. One ball is drawn at random. If probability of getting a green ball is $3/5$, then find the number of yellow balls.


                      • 6.
                        The value of p for which roots of the quadratic equation $x^2 - px + 6 = 0$ are rational, is

                          • $1$
                          • $-5$
                          • $25$
                          • $\sqrt{5}$

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