Friday, August 24

You do the math.

My world exploded with my boy. Everybody's better, now, but blogging took a back seat.

More blogs coming early next week.

Back, and better than ever!


Brett said...

Glad to have you back. So glad to hear that things are better, which I hope means, fine.

Dan Bru said...

x = 5

Cornelius said...

Pythagorean theorem

a^2 + b^2 = c^2

4^2 + 3^2 = c^2

16 + 9 = 25

25/2 = c^2/2


Cornelius said...

square root of 25 = 5 my bad

Cmoeman said...

The fourth step in Cornelius' proof is incorrect. Pythagorean theorem is a^2 + b^2 = c^2 where c is the hypotenuse, as he had it. His fourth step, where he divided by 2, is not needed. the 4th part of the proof should be 25 = c^2. When you take the square root of both sides, you will then find C. Dividing by 2 does not cancel out squares. Dan bru was correct though failing to give a proof. I would have to say that I like think the best "think outside of the box" answer by far is the answer that was given by the student who was taking this test.

Brett said...


Matthew Westerholm said...

wow. I should run a blog of geometry puzzels. *THAT* would get the comments flowing. :-)