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  • Question

  • ? LMN is right angled at M. If m?N = 45°, what is the length of MN (in cm), if NL = 9?2 cm?


  • Options
  • A. 9?2
  • B. 9/?2
  • C. 18
  • D. 9

  • Correct Answer
  • 9 

    • Area problems

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    • 1. D and E are points on side AB and AC of ?ABC. DE is parallel to BC. If AD:DB = 2:5 and area of ?ADE is 8 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

    • Options
    • A. 98
    • B. 94
    • C. 90
    • D. 86
      • Discuss
    • 2. What is the reflection of the point (5, 3) in the line y = -2?

    • Options
    • A. (-9 , 3)
    • B. (-5 , -7)
    • C. (-9 , -3)
    • D. (5 , -7)
      • Discuss
    • 3. ?XYZ is similar to ?PQR. If ratio of perimeters of ?XYZ : ?PQR is 3:2 and if PQ = 6 cm then what is the length of XY (in cm)?

    • Options
    • A. 4
    • B. 8
    • C. 12
    • D. 9
      • Discuss
    • 4. What is the slope of the line parallel to the line passing through the points (4,-2) and (-3,5)?

    • Options
    • A. 3/7
    • B. 1
    • C. -3/7
    • D. -1
      • Discuss
    • 5. Point A divides segment BC in the ratio 1:3. Co-ordinates of B are (4,-4) and C are (0,6). What are the co-ordinates of point A?

    • Options
    • A. (-3, 1.5)
    • B. (-1.5, 3)
    • C. (3, -1.5)
    • D. (1.5, 3)
      • Discuss
    • 6. The diagonal of a square is 12 cm what is the length (in cm) of its side?

    • Options
    • A. 6?2
    • B. 12?2
    • C. 6
    • D. 9
      • Discuss
    • 7. ?ABC is right angled at B. BD is an altitude. AD = 9 cm and DC = 16 cm. What is the value of BD (in cm)?

    • Options
    • A. 6
    • B. 18
    • C. 21
    • D. 12
      • Discuss
    • 8. ? DEF is right angled at E. If m?D = 30°, what is the length of DE (in cm), if EF = 6?3 cm?

    • Options
    • A. 18
    • B. 12?3
    • C. 18?3
    • D. 12
      • Discuss
    • 9. What is the area (in sq cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm?

    • Options
    • A. 42
    • B. 168
    • C. 84
    • D. 63
      • Discuss
    • 10. What is the area (in sq cm) of an equilateral triangle of side 14 cm?

    • Options
    • A. 49?3
    • B. 98?3
    • C. (49/2)?3
    • D. (49/4)?3
      • Discuss

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