NCERT Solutions for Class 9 Maths Chapter 7 Triangles Exercise 7.5 Solutions

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NCERT Solutions for Class 9 Maths Chapter 7 Triangles Exercise 7.5 Solutions are based on the summary of previous exercises, like SAS Congruence Rule, ASA Congruence Rule, AAS Congruence Rule, SSS Congruence Rule, RHS Congruence Rule and Properties of Triangle.

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CBSE X Related Questions

  • 1.
    If the quadratic equation \(9x^2 + 8kx + 16 = 0\) has real and equal roots, then the value of k is

      • 3
      • –3
      • –4
      • \(\pm 3\)

    • 2.
      \(ABCD\) is a parallelogram such that \(AF = 7 \text{ cm}\), \(FB = 3 \text{ cm}\) and \(EF = 4 \text{ cm}\), length \(FD\) equals

        • \(\frac{21}{4} \text{ cm}\)
        • \(\frac{28}{3} \text{ cm}\)
        • \(\frac{12}{7} \text{ cm}\)
        • \(5.5 \text{ cm}\)

      • 3.
        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 \(\sqrt{3} = 1.73\))


          • 4.
            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.


              • 5.
                If the zeroes of a polynomial p(x) are $-3$ and 8, then p(x) equals

                  • $x^2 + 5x - 4$
                  • $(x + 3) (-x + 8)$
                  • $a(x^2 + 5x - 24)$
                  • $x^2 - 24$

                • 6.
                  The first term of an AP is $p$ and the common difference is $q$, then its 10th term is :

                    • $q - 9p$
                    • $p - 9q$
                    • $p + 9q$
                    • $2p + 9q$

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