NCERT Solutions for Class 9 Maths Chapter 13 Exercise 13.9 Solutions

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NCERT Solutions for Class 9 Maths Chapter 13 Exercise 13.9 Solutions are based on the description of the construction of various objects, like cube, cuboid, sphere, cylinders and more. It covers the summary of the topic.

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Read More: NCERT Solutions For Class 9 Maths Chapter 13 Surface Areas and Volumes

Exercise Solutions of Class 9 Maths Chapter 13 Surface Areas and Volumes

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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.
        Two water taps together can fill a tank in $8\frac{8}{9}$ hours. The tap of larger diameter takes 4 hours less than the smaller one to fill the tank separately. Find the time in which each tap can separately fill the tank.


          • 3.
            The HCF of 960 and 432 is :

              • 48
              • 54
              • 72
              • 36

            • 4.
              A kite is flying at a height of \(60 \text{ m}\) above the ground level. Ravi, standing at the roof of the house is holding the string straight and observes the angle of elevation of kite as \(30^{\circ}\). From the bottom of the same building, the angle of elevation of kite is \(45^{\circ}\). Find the length of the string and height of roof from the ground. (Use \(\sqrt{3} = 1.73\))


                • 5.
                  If the pair of linear equations : \( a_1x + b_1y + c_1 = 0 \) and \( a_2x + b_2y + c_2 = 0 \) is consistent and dependent, then

                    • \( \frac{a_1}{a_2} \neq \frac{b_1}{b_2} \)
                    • \( \frac{a_1}{a_2} = \frac{b_1}{b_2} = \frac{c_1}{c_2} \)
                    • \( \frac{a_1}{a_2} = \frac{b_1}{b_2} \neq \frac{c_1}{c_2} \)
                    • \( \frac{a_1}{a_2} = \frac{b_1}{b_2} = \frac{c_1}{c_2} \)

                  • 6.
                    The graph of \(y = f(x)\) is given. The number of zeroes of \(f(x)\) is :

                      • 0
                      • 1
                      • 3
                      • 2

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