Do you have great imagination? Then explore the wonderful world of geometry beginning with planes.
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| Solid figures |
Planes
are much like the flat surfaces you see around you. Imagine it to be like a piece of paper. You
can say how wide or long they are but you can’t say how tall. Planes have width
and length but not height making them two dimensional objects. Those that have width, height and length are
what you call three dimensional objects but let’s reserve that discussion for
later.
Back
to plane figures. They come is different shapes and sizes like
squares, triangles, circles,
trapezoids, rectangles and so on. There
figures are defined by two things: the number of sides they have and the angles
at the corners.
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| Plane figures |
A
square is any plane with four equal sides and four right angles too. In geometry,
squares fall under the category of quadrilaterals,
objects with four sides regardless of the shape. The interior angles of a quadrilateral object
always add up to 360 degrees.
Parallelogram, rhombus, trapezoid, rectangles and kite are some of the
other types of quadrilateral.
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| Quadrilaterals |
A
triangle meanwhile has three sides, which are not necessarily equal. Thus, there are different types of triangles
Equilateral triangle, Isosceles triangle, Scalene Triangle, Acute Triangle and
Obtuse Triangle. All of them look
different from each others because of the varying measures of the angles. All the same though, when we
add all the three angles, it will always total 180 degrees.
And
of course you know what circles look like. In geometry, they are defined as
objects whose points are all the same distance from the center. When you draw a
straight line across the circle, passing the center, this is called the
diameter. The line from the center to one point in the circle meanwhile is
called the radius. Basically, the radius is half of the diameter.
As
you progress, you will need math worksheets which can help you calculate the area and the perimeter of
planes. You will be taught geometric,
theorems, postulates and formulas too. The more math worksheets you work on, the better you’re going to get. Who
knows you might decide to be an engineer someday and build houses and
skyscrapers? Start mastering geometry as
early as now!
