Tuesday, September 4, 2012

Formula for Volume of a Triangular

Formula for volume of a triangular:
It have three angles and it forms like a triangle is called triangular figure  The volume of a triangular depends on their sides. A triangle pyramid has a triangle for a base. That is shown below.

Triangular prism

Triangular pyramid


Formula for volume of a triangular prism:

Volume = `1/2` * length * width * height.

L –   Length

W –  Width

H –   Height

Formula for volume of a triangular pyramid

Volume of Pyramid = (1/6)abh

a – apothem length

b – Side

h – Height


Example Problems Regarding Formula for Triangular Prism:

Example 1:

The rectangular prism has its length 12 cm , width 9 cm and height 18cm. find the volume of triangular prism.

Solution :

Given that Length  = 12

Width   =  9

Height = 18

Formula for volume of a triangular = `1/2` * length*width*height.

= `1/2` * 12 * 9 * 18

= 0.5 * 1944

= 972

The solution for the triangular prism is = 972

Example 2:

The rectangular prism has its length 10 cm , width 8cm and height 15cm. find the volume of triangular prism.   

Solution :

Given that Length  = 10

Width   =  8

Height = 15

Formula for volume of a triangular = `1/2` * length*width*height.

= `1/2` * 10 * 8 * 15

= 0.5 * 1200

= 600

The solution for the triangular prism is = 600


Example Problem Regarding Formula for Volume of a Triangular Pyramid:

Example 3:

The pyramid has its apothem length 8 cm , base side 4cm and height 12cm. find the volume of triangular pyramid.

Solution:

Given that  a - 8 cm

b – 4 cm

h – 12 cm

Formula for volume of a triangular pyramid = (1/6)abh

a – apothem length

b – Side

h – Height

=  `( 1 / 6 )` * 8 * 4 * 12

= 8 * 4 * 2

=  64

The solution for the triangular pyramid is = 63.744

Example 4:

The pyramid has its apothem length 9 cm , base side 6cm and height 13cm. find the volume of triangular pyramid.

Solution:

Given that  a - 9 cm

b – 6 cm

h – 13 cm

Formula for volume of a triangular pyramid = (1/6)abh

a – apothem length

b – Side

h – Height

=  `( 1 / 6 )` * 9 * 6 * 13

= 9 * 13

=  117

The solution for the triangular prism is = 116.532

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