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.
    In the given figure, \(TP\) and \(TQ\) are tangents to a circle with centre \(M\), touching another circle with centre \(N\) at \(A\) and \(B\) respectively. It is given that \(MQ = 13 \text{ cm}\), \(NB = 8 \text{ cm}\), \(BQ = 35 \text{ cm}\) and \(TP = 80 \text{ cm}\).
    (i) Name the quadrilateral MQBN. (1)
    (ii) Is MN parallel to PA? Justify your answer. (1)
    (iii) Find length TB. (1)
    (iv) Find length MN. (2)


      • 2.
        Evaluate : \(\frac{3 \cos^2 30^{\circ} - 6 \csc^2 30^{\circ}}{\tan^2 60^{\circ}}\).


          • 3.
            If the median of the following distribution is 32.5, then find the values of x and y.


              • 4.
                Assertion (A) : H.C.F. \((36 m^{2}, 18 m) = 18 m\), where \(m\) is a prime number.
                Reason (R) : H.C.F. of two numbers is always less than or equal to the smaller number.

                  • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
                  • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
                  • Assertion (A) is true, but Reason (R) is false.
                  • Assertion (A) is false, but Reason (R) is true.

                • 5.

                  Which of the following sequence is \(\textit{not }\)an A.P. ?
                   

                    • \( 2, \frac{5}{2}, 3, \frac{7}{2}, \dots \)
                    • \( -1.2, -3.2, -5.2, -7.2, \dots \)
                    • \( \sqrt{2}, \sqrt{8}, \sqrt{18}, \dots \)
                    • \( 1^2, 3^2, 5^2, 7^2, \dots \)

                  • 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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