Archive for the ‘Areas’ Category

Why Learn About Surface Area?

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 ...

Surface Area and Volume | Their Difference

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 ...

Application Of Area Concept

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 ...

Are The Area Of The Shapes Same?

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 ...

Geometry|Odd Area - Sector

Sunday, March 16th, 2008

This post represents the solution to the question about finding the flipped up area of a circle. Click here to review the question. Before I proceed on with the solution, you need to know how to find the area of a sector (of a circle). Area of a Sector of a circle:   Formula ...

Geometry | Odd Area

Friday, March 14th, 2008

Shapes are aplenty in this planet. We are sometimes asked to find their parameters using concept of geometry. Geometry deals with angles, areas and perimeters. A bit of creativity is good, if you want less steps in solving or getting the odd-shaped area. Do not despair though, since any method will be fine as long as ...