Showing posts with label Triangular Pyramid. Show all posts
Showing posts with label Triangular Pyramid. Show all posts

Wednesday, September 12, 2012

Definition of Triangular Pyramid

Introduction to the definition of triangular pyramid:
In this article we see about definition of triangular pyramid. Pyramid is a polyhedron 3 – dimensional geometric shape. The pyramid has 4 – vertices. Out of them 3 are base of the pyramid and one is top of the pyramid.

Types of pyramid:

Square pyramid
Rectangular pyramid
Triangular pyramid
Pentagonal pyramid
These are some of the types of pyramid. In this section we see about definition of triangular pyramid.

Definition of Triangular Pyramid:
A pyramid which has a triangular base is said to be triangular pyramid.


Types of triangular pyramid:

Equilateral triangular pyramid – base of this pyramid is equilateral triangle
Isosceles triangular pyramid – base of this pyramid is isosceles triangle
Scalene triangular pyramid – base of this pyramid is scalene triangle
Volume of a triangular pyramid = `1/3` area of the triangle x length

Volume = `1/3` x `1/2 ` x base x height x length

That is volume = `1/6 xx b xx h xx l`

Let example we see some of the example problems for triangular pyramid.

I am planning to write more post on math problems for 6th grade, how to divide decimals with whole numbers. Keep checking my blog.

Example Problems – Definition of Triangular Pyramid:

Example problems 1 – definition of triangular pyramid:

Calculate the volume of triangular pyramid where the base is 6.5 m, height is 14.6 m and length is 15.4m.

Solution:

Given:

Base b = 6.5 m

Height h = 14.6 m

Length l = 15.4 m

Volume of triangular pyramid = `1/6` x b x h x l

= `1/6` x 6.5 x 14.6 x 15.4

= `1/6 ` 1461.46

= 243.57

Answer: volume of a triangular pyramid = 243.57 cubic meter.

Example problem 2 – definition of triangular pyramid:

Calculate the volume of triangular pyramid where the base is 12 m, height is 20 m and length is 15m.

Solution:

Given:

Base b = 12 m

Height h = 20 m

Length l = 15 m

Volume of triangular pyramid =` 1/6` x b x h x l

= `1/6` x 12 x 20 x 15

= `1/6` 3600

= 600

Answer: volume of a triangular pyramid = 600 cubic meter.