Showing posts with label chords. Show all posts
Showing posts with label chords. Show all posts

Friday, April 25, 2014

Bent Shower Rod

This past week I went to Monterrey with my mom for a little vacation. We stayed in a small hotel and while there I noticed the bent shape of the shower rod. I immediately thought of geometry.


After drawing in a straight bar and calculating the area of the triangle formed versus the increased area with a bent shower rod:


I concluded that the bent rod greatly increases the space within the shower.
37.31-21.63= 15.68 cm-squared more space.

This is probably one of the simplest yet one of the most useful inventions for everyday life. (~LU2)


Tuesday, April 1, 2014

Cymbals with Tangents, Chords, & Secants

Over the weekend, I acquired two new cymbals and I thought I'd make use of them, other than for music.  In this first illustration, I proved that the result of multiplying two pieces of individual chords should be equal.  I simply multiplied AE x EC (the labels you can't see very well, sorry,) the first chord, and then BE x ED, the second chord, and they both came out to be 34.36 cm sq.  


In this second picture, I demonstrated that the tangent of a circle multiplied by itself, is equal to the outside piece of a secant multiplied by the entire length of the secant. I squared AB which resulted in 200.77 cm sq, and multiplied AC x AD, which resulted in 200.77 cm sq as well. This proves that the tangent squared does equal the secant length times the outer piece. (~JG2)

Saturday, March 29, 2014

Circles in Mega Man II

Mega Man.png






















Whilst playing Mega Man II, I unfortunately died. More or less, this is how I looked right before I did die:
Mega Man Expression.png 




All silliness aside, I did notice that Mega Man explodes into a bunch of circles upon death.

Mega Man Circle Proof.png

The circles Mega Man explodes into when he dies share all of the qualities of circles and can be used to demonstrate them:

Mega Man Circle Chords.png


For example, these circles can be used to demonstrate Theorem 9-11, which states “when two chords intersect inside a circle, the product of the segments of one chord equals the product of the segments of the other chord.” As shown by my diagram, AX * BX =CX * DX, which is exactly what the theorem states. (~JC1)

And no, Channing, Air Man (pictured below) is not wearing some kind of fancy pants.

Air Man.png