(a) A lamp shade is in the form of a frustum of a cone of diameter 21cm and 28cm. Its height is 10cm. Calculate the volume...

      

(a) A lamp shade is in the form of a frustum of a cone of diameter 21cm and 28cm. Find it's height if the height of the cone that was cut off is 10cm.
(b)Calculate the volume of the lampshade.
(c) Two circles each of radius 5cm intersects such that the distance between their centres is 6cm. The
length of the common chord joining the two points of intersection is 8cm. Calculate the area of intersection.

  

Answers

---

---

sharon kalunda answered the question on April 30, 2019 at 09:28

Next: Define intellectual courage.
Previous: Describe the Ostwald’s process.

View More Mathematics Questions and Answers | Return to Questions Index

Exams With Marking Schemes

• Grade 1
• Grade 2
• Grade 3
• Grade 4
• Grade 5
• Grade 6
• Grade 7
• Grade 8
• Grade 9
• PP1
• PP2
• Playgroup
• Form 1
• Form 2
• Form 3
• Form 4

Related Questions

---

• The figure below is a right rectangular based pyramid VABCD where AB = 5cm, BC = 7cm, VC = 13cm and O is a point on...(Solved)
  

  The figure below is a right rectangular based pyramid VABCD where AB = 5cm, BC = 7cm, VC = 13cm and O is a point
  on the base of the pyramid vertically below V.
  
  Calculate
  (a) AC
  (b) VO, the height of the pyramid.
  (c) the angle between the edge VB and the plane ABCD.
  (d) the angle between the planes VBC and ABCD.

  Date posted: April 30, 2019.  Answers (1)

• The points P1(5,4) and Q1(6,1) are the images of P and Q respectively under translation. Given that the co-ordinates of P and (2,3), find the co-ordinates...(Solved)
  

  The points P1(5,4) and Q1(6,1) are the images of P and Q respectively under translation. Given that the co-ordinates of
  P and (2,3), find the co-ordinates of Q.

  Date posted: April 30, 2019.  Answers (1)

• The cost per kg of Sony Sugar is KSh. 60 and the cost per kg of Imported Sugar is KSh. 80. The two brands of...(Solved)
  

  The cost per kg of Sony Sugar is KSh. 60 and the cost per kg of Imported Sugar is KSh. 80. The two brands of Sugar are
  mixed and sold at a profit of 30% above the cost. If 1kg of the mixture was sold at KSh. 84.50, determine the ratio in
  which the two brands were mixed.

  Date posted: April 30, 2019.  Answers (1)

• Using reciprocal tables only evaluate correct to 4 S.F(Solved)
  

  Using reciprocal tables only evaluate correct to 4 S.F
  

  Date posted: April 30, 2019.  Answers (1)

• The figure below shows the section of a wedge. AB = 4cm, BC = 13cm, CD = 12Ccm, AD = 3cm and BD = 5cm.(Solved)
  

  The figure below shows the section of a wedge. AB = 4cm, BC = 13cm, CD = 12Ccm, AD = 3cm and BD = 5cm.
  
  Given that angle ADC = 90⁰, find the volume of the solid and the length of AC.

  Date posted: April 30, 2019.  Answers (1)

• Solve the inequality below and state the integral values satisfying the solution.(Solved)
  

  Solve the inequality below and state the integral values satisfying the solution.
  

  Date posted: April 30, 2019.  Answers (1)

• Without using a calculator evaluate(Solved)
  

  Without using a calculator evaluate giving your answer as a mixed fraction.

  Date posted: April 30, 2019.  Answers (1)

• A regular polygon has the sum of its interior angles as 1800⁰.(Solved)
  

  A regular polygon has the sum of its interior angles as 1800⁰.
  (i) How many sides are there in the polygon?
  (ii) How many triangles can be made by joining one of its vertices with all other vertices with straight lines.

  Date posted: April 30, 2019.  Answers (1)

• A ship sails from harbour P on an bearing 0300 for 900km until it reaches harbour Q. It then alters its direction to a bearing...(Solved)
  

  A ship sails from harbour P on an bearing 0300 for 900km until it reaches harbour Q. It then alters its direction to a bearing of 340⁰ and sails from 1200km to harbour R. Calculate the distance between harbours P and R.

  Date posted: April 30, 2019.  Answers (1)

• Simplify the expression completely:(Solved)
  

  Simplify the expression completely:
  

  Date posted: April 30, 2019.  Answers (1)

• The figure below shows a sector of a circle of radius 15cm. Calculate the area of the sector given than angle theta = 2.4 radians.(Solved)
  

  The figure below shows a sector of a circle of radius 15cm. Calculate the area of the sector given than angle theta = 2.4
  radians
  

  Date posted: April 30, 2019.  Answers (1)

• Find the value of x in the equation: 27^x + 3^3x-1 = 108(Solved)
  

  Find the value of x in the equation:
  27^x + 3^3x-1 = 108

  Date posted: April 30, 2019.  Answers (1)

• A trader at Chuka town sells a school shirt at Sh. 725 and makes 45% profit. During clearance sale he reduced the price of the...(Solved)
  

  A trader at Chuka town sells a school shirt at Sh. 725 and makes 45% profit. During clearance sale he reduced the price of the shirt by 20%. What percentage profit did he make.

  Date posted: April 30, 2019.  Answers (1)

• The figure below shows a net of a solid which is not drawn to scale.(Solved)
  

  The figure below shows a net of a solid which is not drawn to scale.
  
  (a) Sketch the solid ABCDEF with ABCD as the base. (2 Marks)
  (b) Calculate its volume.

  Date posted: April 30, 2019.  Answers (1)

• A rectangular slab of glass measures 8cm by 3cm by 2cm and has a mass of 5.5kg. Calculate the density of glass in g/cm³.(Solved)
  

  A rectangular slab of glass measures 8cm by 3cm by 2cm and has a mass of 5.5kg. Calculate the density of glass in g/cm³.

  Date posted: April 30, 2019.  Answers (1)

• Use the prime factors of 3136 and 2744 to evaluate:(Solved)
  

  Use the prime factors of 3136 and 2744 to evaluate:
  

  Date posted: April 30, 2019.  Answers (1)

• Evaluate using logarithms(Solved)
  

  Evaluate using logarithms
  

  Date posted: April 30, 2019.  Answers (1)

• In the figure below,DE=1/2AB,BC=2/3BD and the coordinates of A, B and D are (5, 4), (9, 6) and (12, 0) respectively.(Solved)
  

  In the figure below,DE=1/2AB,BC=2/3BD and the coordinates of A, B and D are (5, 4), (9, 6) and (12, 0) respectively.
  
  Find the column vectors:
  i) BD
  ii) BC
  iii) CD
  iv) AC

  Date posted: April 30, 2019.  Answers (1)

• Solve for theta in the equation 3 cos²theta + sin theta + 1 = 0 0 = theta = 360⁰(Solved)
  

  Solve for theta in the equation 3 cos²theta + sin theta + 1 = 0 0 ≤ theta ≤ 360⁰

  Date posted: April 30, 2019.  Answers (1)

• a)Draw the graph of the function y = 1 + x -2x² on the graph paper provided.(Solved)
  

  a)Draw the graph of the function y = 1 + x -2x² on the graph paper provided.
  b) Use your graph to find the value for x in the equation 1 + x -2x² = 0
  c) By drawing a suitable line graph on the same graph find the value for x which satisfies the equation 2 + 2x- 2x² = 0

  Date posted: April 30, 2019.  Answers (1)