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Home ‣ Aptitude ‣ Volume and Surface Area Comments
  • Question

  • AB is a chord of the circle and its center is ?O?. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2?11) cm, find the radius (in cm) of the circle.


  • Options
  • A. 10
  • B. 12
  • C. 13
  • D. 15

  • Correct Answer
  • 12 

    • Tags: Bank Exams

    Volume and Surface Area problems

    Search Results

    • 1. In ?ABC, ?B is right angle, D is the mid point of the side AC. If AB = 6 cm, BC = 8cm, then the length of BD is

    • Options
    • A. 4 cm
    • B. 5 cm
    • C. 8 cm
    • D. 12 cm
      • Discuss
    • 2. If the length of a chord of a circle is equal to that of the radius of the circle, then the angle subtended, in radians, at the centre of the circle by chord is

    • Options
    • A. 1
    • B. ?/2
    • C. ?/3
    • D. ?/4
      • Discuss
    • 3. Triangle ?XYZ is similar to ?PQR. If XY:PQ=5:1. If Area of ?PQR is 5 sq cm, what is the area (in sq cm) of ?XYZ?

    • Options
    • A. 125
    • B. 120
    • C. 100
    • D. 64
      • Discuss
    • 4. ? XYZ is right angled at Y. If m?Z = 30°. What is the length of YZ (in cm), if ZX = 9 cm?

    • Options
    • A. 6?3
    • B. 9?3/2
    • C. 3?3
    • D. 18
      • Discuss
    • 5. D and E are points on side AB and AC of ?ABC. DE is parallel to BC. If AD:DB = 1:2 and area of ?ABC is 45 sq cm, what is the area (in sq cm) of quadrilateral BDEC?

    • Options
    • A. 20
    • B. 40
    • C. 15
    • D. 30
      • Discuss
    • 6. The largest chord of the circle has a length of 20.4 cm. The radius of the circle will be _____.

    • Options
    • A. 10.2 cm
    • B. > 10.2 cm
    • C. >=10.2 cm
    • D. <10.2 cm
      • Discuss
    • 7. The area of a semicircle is 1925 cm2. Calculate its perimeter (in cm).

    • Options
    • A. 360
    • B. 80
    • C. 160
    • D. 180
      • Discuss
    • 8. If the side AB of an equilateral triangle ABC is equal to 12 cm. Calculate the length( in cm) of the AO, if O is the centroid of the triangle.

    • Options
    • A. 2?3
    • B. 3?3
    • C. 4?3
    • D. 9?3
      • Discuss
    • 9. The perimeter and the length of one of the diagonals of a rhombus is 34 cm and 8 cm respectively. Find the length of its other diagonal (in cm).

    • Options
    • A. 7.5
    • B. 30
    • C. 22.5
    • D. 15
      • Discuss
    • 10. Find the perimeter (in cm) of a semicircle of radius 14 cm.

    • Options
    • A. 144
    • B. 46
    • C. 72
    • D. 92
      • Discuss

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