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  • Question

  • 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

  • Correct Answer
  • 49?3 

    • Area problems

    Search Results

    • 1. 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
    • 2. ? 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
    • 3. ?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
    • 4. 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
    • 5. ? 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
      • Discuss
    • 6. Point P is the midpoint of segment AB. Co-ordinates of P are (3 , 1) and B are (5, -4). What are the co-ordinates of point A?

    • Options
    • A. (-1 , 7)
    • B. (1 , -7)
    • C. (1 , 6)
    • D. (-1 , -7)
      • Discuss
    • 7. What is the slope of the line perpendicular to the line passing through the points (8,2) and (3,1)?

    • Options
    • A. 5
    • B. 3/5
    • C. 5/3
    • D. 1/5
      • Discuss
    • 8. What is the area (in sq cm) of a rectangle if its diagonal is 25 cm and one of its sides is 24 cm?

    • Options
    • A. 186
    • B. 144
    • C. 132
    • D. 168
      • Discuss
    • 9. Area of 4 walls of a cuboid is 57 sq m, if its length is 5.5 m and height is 3 m. What is its breadth (in m)?

    • Options
    • A. 4.5
    • B. 4
    • C. 3
    • D. 3.5
      • Discuss
    • 10. D and E are points on side AB and AC of ?ABC. DE is parallel to BC. If AD:DB = 2:3, what is the ratio of area of ?ADE and area of quadrilateral BDEC?

    • Options
    • A. 4 : 21
    • B. 4 : 25
    • C. 4 : 29
    • D. 4 : 9
      • Discuss

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