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Posts tagged with symmetry

The Beauty of Mathematics ….

November14

“Beauty in Mathematics is seeing the truth without effort”  – George Polya View more images here

Math – a moving experience!

December10

Mathematics is not static – it is seen in movement; our movements, dance, symmetry, connections, and even in handshakes. The following video is well worth viewing if you wand a more moving experience with Mathematics!

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Don’t be fooled by the Cowanumba!

September7

This (almost) mathematically puzzling picture shows an ordinary cow with two ear tags. Of course, you might be drawn to the number 7354 itself and be trying to work out its factors (you were trying to do that weren’t you?). Yes, there are two tags and the number 2 is one of the prime factors […]

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Math and Music with Dr. David Kung

July27

Dr. David Kung is Professor of Mathematics at St. Mary’s College of Maryland. His musical education began at an early age with violin lessons. As he progressed, he studied with one of the pioneers of the Suzuki method and attended the prestigious Interlochen music camp. While completing his undergraduate and graduate degrees in mathematics, he […]

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Illusions and Mathematics

March5

Mercedes have just created an almost invisible car. A camera relays pictures from the opposite side of the car and this gives you the illusion that you are looking right through the vehicle, which may prove unsafe in some situations?  The famous graphic artist, M.C. Escher used the power of illusion in his wonderful drawings. […]

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Post Support

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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