MATHEMATICS LECTURE
19TH MARCH 2014
VOLUME OF CONE
FORMULA OF CONE
V=πr2 h/3
EXAMPLE
QUESTION 1
what is the volume of
this cone? ( π=3.142)
QUESTION 2
Given a cone with the height
of 10cm and the diameter of
the circle is 18cm. Find the
volume of this cone. Take π as
3.14...
SURFACE AREA
OF CONE
A=πr(r+√h2+r2)
A=AREA
r=RADIUS
h=HEIGHT
SURFACE AREA
OF TRAPEZOID
FORMULA OF TRAPEZOID
h
(𝑎+𝑏)
2
= 𝑇𝑆𝐴
H= height
(a+b) = total length of
parallel sides
Mathematics lecture
Mathematics lecture
Mathematics lecture
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Mathematics lecture

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Mathematics lecture

  1. 1. MATHEMATICS LECTURE 19TH MARCH 2014
  2. 2. VOLUME OF CONE
  3. 3. FORMULA OF CONE V=πr2 h/3
  4. 4. EXAMPLE
  5. 5. QUESTION 1
  6. 6. what is the volume of this cone? ( π=3.142)
  7. 7. QUESTION 2
  8. 8. Given a cone with the height of 10cm and the diameter of the circle is 18cm. Find the volume of this cone. Take π as 3.142.
  9. 9. SURFACE AREA OF CONE
  10. 10. A=πr(r+√h2+r2) A=AREA r=RADIUS h=HEIGHT
  11. 11. SURFACE AREA OF TRAPEZOID
  12. 12. FORMULA OF TRAPEZOID h (𝑎+𝑏) 2 = 𝑇𝑆𝐴 H= height (a+b) = total length of parallel sides
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