116Views15Replies

# How can I find the distance between these two points (D)? Answered

If N1,
K1,
N2,
K2,
and C, are all known for me.

Can I find D?. If yes then how?.

Tags:

## Discussions

There are only 3 critical lines in that problem C, N2, and N1.

From the value of those three lines you can determine the value of all the others.

However to determine the value of K1 if K1 was unknown you add the value of C to D squared to N1 squared and then get the square rout of their sum to give you the value of K1 making it a little more work.

Of course there is extraneous data it is there to teach you to look for what is important.

Then there is the fact the teacher is assumptive and they never consider factoring includes decimal places in a problem.

So when they ask you to factor 77 they forget to give you the determinator 4 to tell you it is 7X11 not 15.4X5 and after there mistake they say this one is more right than that one without an explanation of why.

If this answer is more right than that one it should be easy to explain why.

How can a student learn from a teacher when they are the screw up.

Darn now I got to check my files I can't remember if I have 5 or 8 degrees in mathematics.

Actually since the dark ages, if you knew C and N2, trigonometry could let you solve the rest (K2-K1-D & Yes-N1).

Or if you knew C the angle between K2 & C and the angle between C & N2 was a right 90' angle, you could figure out the rest, a necessary good thing to aim a trebuchet.