NCERT Solutions for Class 9 Maths Chapter 2 Polynomials Exercise 2.1 Solutions

CBSE X Related Questions

  • 1.
    In the given figure, \( \triangle AHK \sim \triangle ABC \). If \( AK = 10 \text{ cm} \), \( BC = 3.5 \text{ cm} \) and \( HK = 7 \text{ cm} \), find the length of \( AC \).


      • 2.
        In the adjoining figure, the slant height of the conical part is :

          • 4 cm
          • 7 cm
          • 5 cm
          • 25 cm

        • 3.
          The graph of \(y = f(x)\) is given. The number of zeroes of \(f(x)\) is :

            • 0
            • 1
            • 3
            • 2

          • 4.

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

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

            • 5.
              Three tennis balls are just packed in a cylindrical jar. If radius of each ball is \(r\), volume of air inside the jar is

                • \(2\pi r^3\)
                • \(3\pi r^3\)
                • \(5\pi r^3\)
                • \(4\pi r^3\)

              • 6.
                Through the mid-point Q of side CD of a parallelogram ABCD, the line AR is drawn which intersects BD at P and produced BC at R. Prove that \(AQ = QR\).

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