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  • Question

  • Find the volume (in cm3) of a right circular cylinder of diameter 21 cm and height 10 cm.


  • Options
  • A. 3118
  • B. 3275
  • C. 3621
  • D. 3465

  • Correct Answer
  • 3465 

    • Area problems

    Search Results

    • 1. 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
    • 2. Length and breadth of a rectangle are increased by 40% and 70% respectively. What will be the percentage increase in the area of rectangle?

    • Options
    • A. 118
    • B. 110
    • C. 138
    • D. 128
      • Discuss
    • 3. What is the length of the arc whose central angle is 30° and radius of the circle is 21 cm?

    • Options
    • A. 22 cm
    • B. 16.5 cm
    • C. 11 cm
    • D. 28 cm
      • Discuss
    • 4. In the circle, chord AB is extended to meet the tangent DE at D. If AB = 12 cm and DE = 8 cm, find the length of BD.

    • Options
    • A. 4 cm
    • B. 5 cm
    • C. 6 cm
    • D. 7 cm
      • Discuss
    • 5. If a cylinder of radius 4 cm and height 8 cm is melted and constructed into a cone of the same radius, what will be the height of this cone?

    • Options
    • A. 48 cm
    • B. 24 cm
    • C. 36 cm
    • D. 12 cm
      • Discuss
    • 6. A pentagonal prism has 15 edges. How many vertices does it have?

    • Options
    • A. 12
    • B. 10
    • C. 15
    • D. 20
      • Discuss
    • 7. At what point does the line 4x - 3y = -6 intercept the y-axis?

    • Options
    • A. (0,2)
    • B. (0,3/2)
    • C. (2,0)
    • D. (3/2,0)
      • Discuss
    • 8. Calculate the area (in cm2 ) of a circle of radius 10.5 cm.

    • Options
    • A. 693
    • B. 157.5
    • C. 315
    • D. 346.5
      • Discuss
    • 9. What is the area (in sq cm) of a rhombus if the lengths of its diagonals are 25 cm and 20 cm?

    • Options
    • A. 500
    • B. 250
    • C. 125
    • D. 200
      • Discuss
    • 10. If the radius of a circle is decreased to 25% of its original value, calculate the percentage decrease in the area of the circle

    • Options
    • A. 25%
    • B. 43.75%
    • C. 50%
    • D. 93.75%
      • Discuss

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