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.
Upcoming SlideShare
Loading in …5
×

# Surface Area (PINK THEME)

374 views

Published on

This PPT features a well explained theory / concepts / derivations of the formula of Surface Area of various 3D shapes : like cube, cuboid and cylinder with the help of expanded 3D shapes (called "nets").

NOTE:
# THIS IS PDF FILE SO IF YOU WANT TO DOWNLOAD THE PPT FILE THEN DOWNLOAD IT FROM THE DROPBOX LINK AS GIVEN : https://www.dropbox.com/s/qmwv1ykyybbm4ds/Surface%20Area%20%28PINK%20THEME%29.pptx
REQUIERED FONTS FROM :
1)HeaveneticaBoxed - https://www.dropbox.com/s/dy6s1fwrmkakozo/HeaveneticaBoxed.TTF
2)Forte - https://www.dropbox.com/s/dilwhth9lmyahhp/Forte.TTF
# FOR BETTER EXPERIENCE VIEW THE PPT AFTER DOWNLOADING IN PPT SLIDESHOW........:-)

Published in: Education, Technology, Business
• Full Name
Comment goes here.

Are you sure you want to Yes No
Your message goes here
• Be the first to comment

• Be the first to like this

### Surface Area (PINK THEME)

1. 1. This shows that the outer surface of a cube is made up of six squares but in fact they are the faces of cube. So, Surface area of cube = Area of all six squares Surface area of cube = a2 + a2 + a2 + a2 + a2 + a2 Surface area of cube = 6a2
2. 2. This shows that the lateral or curved surface of a cube is made up of four squares. So, Lateral or curved surface area of cube = Area four squares Lateral or curved surface area of cube = a2 + a2 + a2 + a2 Lateral or curved surface area of cube = 4a2
3. 3. This shows that the outer surface of a cuboid is made up of six rectangles but in fact they are the faces of cuboid. So, Surface area of cuboid = Area of all six rectangles Surface area of cuboid = (lb)+(lb)+(bh) +(bh) + (hl) +(hl) Surface area of cuboid = 2(lb)+2(bh)+2(hl) Surface area of cuboid = 2(lb+bh+hl)
4. 4. This shows that the lateral or curved surface of a cuboid is made up of four rectangles. So, Lateral or curved surface area of cuboid = Area of four rectangles Lateral or curved surface area of cuboid =(bh)+(bh)+(hl)+(hl) Lateral or curved surface area of cuboid = 2(bh)+2(hl) Surface area of cuboid = 2(l+b)h
5. 5. This shows that the outer surface of a cylinder is made up of one rectangle and two circles. So, Surface area of cylinder = Area of rectangle + Area of two Circles Surface area of cylinder = 2 ‫ת‬rh + ( ‫ת‬r2 + ‫ת‬r2 ) Surface area of cylinder = 2 ‫ת‬rh + 2(‫ת‬r2) Surface area of cuboid =2 ‫ת‬r(r+h) ‫ת‬ ‫ת‬
6. 6. This shows that the lateral or curved surface of a cylinder is made up of one rectangle. So, Lateral/curved surface area of cylinder = Area of rectangle Lateral/curved surface area of cylinder = 2 ‫ת‬rh ‫ת‬ ‫ת‬
7. 7. Made by :- Divyansh Batham Class :- IX‘B’ Roll Number :- 9214 Subject :- Mathematics