Blog

Parin Sir > Quantitative Aptitude (Maths) > Mensuration > Solid  Diagrams > Solid  Diagrams

Solid  Diagrams

No Comments

☼ Solid  Diagrams  : –

■ Cuboid :–

Surface  Area

=  2 ( lb + bh + lh )

Volume   =    l b h

■ Cube :–

Surface  Area  =  6 l2

Volume  =  l3

■ Cylinder  :–

  1. Opened

Curved  Surface  Area

=  2\pi r h

Volume  =\pi  r2h

  1. One side Closed

Total  Surface  Area

= 2πr h + π r2

Volume  =  πr2h

  1. Closed

Total  Surface  Area

= 2πr h + 2 π r2

= 2πr  ( h + r )

Volume  =  πr2h

■ Sphere :–

Surface  Area  =  4πr2

Volume  =  \frac{4}{3}πr2

■ Hemi – Sphere :–

  1. Opened

Curved Surface  Area

=  2πr2

Volume  =  \frac{2}{3}r 3

  1. Closed

Total  Surface  Area

= 2πr2 + πr2

= 3πr2

Volume  =  \frac{2}{3}r 2

■ Cone

  1. Opened

Curved  Surface  Area

 =  πr l

Volume  =  \frac{1}{3}πr2 h

  1. Closed

Total  Surface  Area

= πr l + πr2

= πr (  l + r )

Volume  =  \frac{1}{3}πr2h

 

Click here to see next topic

Share
educational sutra maths sutr Examples mathematics SUMS ganit example concept math proof Parin theorem sir theorems bhai definition Mehta definitions maheta fundamental classes basic class base education sum online dakhla tutorial formula

Leave a Reply