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Junior High School Geometry Online Course

Nowadays, we would find our life easier because so many online courses like geometry online course that could teach you geometry without required us to physically attend geometry class at school. Actually, What we need is just a desktop with the fast internet connection then we could always jump to learn the online geometry course. It is not like few years back that we have to physically attend geometry class (imagine the time that we have to spend for attending  the class and comeback home).

Now with this geometry online class, we have a chance to learn geometry lessons without leaving our home.

Below is the statement that I try to solve one of the geometry problem, even this is not one of the real online geometry courses, but my expectation is to help others to understand the blue print of the simple online geometry course.

Before we jump to the complex of the geometry problem, I would like to play one piano song for you and let your mind relax and it would be easier for you to absorb the geometry lessons as below :

Let’s Start :

There is a triangle with <A, <B, <C. Assume the “<” is angle. ¼<C more 12o than (2x<A)-2o. ½<A less 5o than (1:<B)x2o. 2<B more 6o than <C-10o. Then I ask you how much <A ? (The answer may use the fraction)

The answer:

First Equation:

¼<C=2<A-2o

Instant result:

<C=8<A-8o

Second Equation:

½<A = (1:<B)x2o-5o

Instant result:

<A=<B-2½o

Third Equation:

2<B=<C-10o+6o

Instant result:

<B=½<C-2o

Make substitution <C to make it <A!

Because<C=8<A-8o, so the result is:

½<C-2o=4<A-2o(<B=½<C-2o=4<A-2o)

Now, we have three equation, just combine it! We already knew the triangle formula is the three angle, if we combine, the result will always 180o, same like our <A,<B,<C, the formula is :

<A+<B+<C=180o

Now, we come to counting again…

<A=<A , <B=4<A-2o , <C=8<A-8o

Combine them with the statement the result must 180o

<A+4<A-2o+8<A-8o = 180o

13<A-10o = 180o

<A = 14 8/13o

Hopefully this simple geometry online course could provide any one to learn with a better understanding for the concepts of online geometry class. Through reading, geometry online lessons and the independent exploration  would make the learner leave the online class with more complete understanding of geometry and be able to think in a geometrical world.

Good Luck.

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2 Responses

1. frank says:

hi kenneth, I really like your post and especially your piano skill. how do you learn both skill and math for the same time.

2. kenneth says:

math just at school I made that problem more confusing than at school to make my website better I just learn piano since my age 7

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