Archive for the ‘Geometry’ Category
Sunday, March 23rd, 2008
One key topic in geometry is the calculation of surface area for a certain shape.
Why the need for this knowledge? Where is this parameter of Surface Area applied?
Look at the pictures on the right.
Do you see them often? I believe so!
Here, any maker of these items has to know the surface area ...
Posted in Areas, Geometry | No Comments »
Saturday, March 22nd, 2008
Geometry involves many interesting analysis. One of the key items is the computation of Surface Area. Another is the Volume of various 3-dimensional shapes.
What is the main difference between these 2 parameters of geometrical study?
Surface Area: The study of total areas on the outer surface. It is what user can ...
Posted in Areas, Geometry | 1 Comment »
Friday, March 21st, 2008
In geometry, there are occassions where you have to compute the area of a sector belonging to a circle.
What is this sector about?
Sector is an area of a part of the complete circle. It is not a length!
To understand more, let us do a maths question on finding the sector area.
Question:
Find the ...
Posted in Geometry | 1 Comment »
Thursday, March 20th, 2008
In geometry, we often come across 2 terms "Perimeter" and "Circumference".
What is the difference between them?
Let us discuss about Perimeter first before comparing the geometrical terms.
The term "Perimeter" refers to the length of the outline of a shape (with clear start and end points).
It is applicable to shapes using straight lines ...
Posted in Geometry | 2 Comments »
Monday, March 17th, 2008
Knowing the concept of area helps solve many applications.
There are occasion where we need to cover a large area using numerous small pieces of similarly sized item.
Example: Numerous small pieces of mat used to cover the floor of a room. "How many of this small pieces of mat is required?" This is a ...
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Monday, March 17th, 2008
When we look at shapes, sometimes we wonder are they of the same size or area? With basic geometric understanding, we will be in a better position to deduce the answer just by comparing the shapes in question.
Look at the pairs of shapes below (Diagram A to E), and tell ...
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