Thread: Parallogram Area Don't Have Height Need within few hours

1. Parallogram Area Don't Have Height Need within few hours

2. can you give me the values that you have...i could not read you picture
dan

3. BE=CD-37cm
BF=26cm
FC=14cm

4. Let EH represent the perpendicular line drawn from E to BC, i.e. the height. Now,
$\Delta EHC\sim \Delta OFC$
But, $OF=\frac{1}{2}EH$ (half the height).
Thus,
$\frac{OF}{EH}=\frac{1}{2}$.
Now use similar triangles,
$\frac{OF}{EH}=\frac{FC}{CH}$
Thus,
$\frac{FC}{CH}=\frac{1}{2}$
Thus,
$FC=\frac{1}{2}CH$
Thus,
$CH=2FC$
Thus,
$CH=2(14)=28$
Then,
$HF=CH-FC=14$
Then,
$BH+HF=26$
Thus,
$BH+14=26$
Thus,
$BH=12$
Finally Pythagorean theorem,
$BH^2+HE^2=BE^2$
Thus,
$(12)^2+HE^2=(37)^2$
Thus,
$144+HE^2=1369$
Thus,
$HE^2=1225$
Thus,
$HE=\sqrt{1225}=35$

5. tyvm this site pwns

6. Originally Posted by AHDDM
tyvm this site pwns
Yes, I am old. Can you say that again in English?

-Dan

7. Originally Posted by topsquark
Yes, I am old. Can you say that again in English?
You are only 36, extremely young age for a physisit.
---
Thank you very much. This site pwns.

Pwns stands for Pawns, as in wins/awesome.
Example,
"ThePerfectHacker pawned the n00bish team with cheats in Battlefield 2"

8. Originally Posted by ThePerfectHacker
You are only 36, extremely young age for a physisit.
---
Thank you very much. This site pwns.

Pwns stands for Pawns, as in wins/awesome.
Example,
"ThePerfectHacker pawned the n00bish team with cheats in Battlefield 2"
Oookay, I'll have to look that one up in my chess-book.

Just for reference, "tyvm" is "thank you very much?" (Do you know I can actually type out the words in that faster than I can type tyvm?)

-Dan

9. Originally Posted by topsquark
Oookay, I'll have to look that one up in my chess-book.

Just for reference, "tyvm" is "thank you very much?" (Do you know I can actually type out the words in that faster than I can type tyvm?)

-Dan
The sad thing is that some of us can now type it in $T_EX$ faster than it
takes to decipher the abreviation.

RonL