Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Surface areas and volume

2,990 views

Published on

Surface areas and volume

  1. 1. SURFACE AREASAND VOLUMES
  2. 2. CONTENTSSURFACE AREAS AND VOLUMES OF :-CUBOIDCUBECYLINDERCONESPHERE
  3. 3. SURFACE AREA Area of square 1 = a x a Area of square 2 = a x a Area of square 3 = a x a Area of square 4 = a x a Area of square 5 = a x a Area of square 6 = a x a Surface Area = Area of all 6 faces = 6a2
  4. 4. VOLUME
  5. 5. Circumference of a circle = 2πrArea covered by a circle = (2πr) x (h) = 2πrh
  6. 6. TOTAL SURFACE AREA
  7. 7. VOLUME
  8. 8. If we make a cone having radius and heightequal to the radius of sphere. Then a waterfilled cone can fill the sphere in 4 times. r r r V=1/3 πr2h V1 If h = r then V1 = 4V = 4(1/3 πr3) V=1/3 πr3 V1= 4/3 πr3

×