# 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,
$\displaystyle \Delta EHC\sim \Delta OFC$
But, $\displaystyle OF=\frac{1}{2}EH$ (half the height).
Thus,
$\displaystyle \frac{OF}{EH}=\frac{1}{2}$.
Now use similar triangles,
$\displaystyle \frac{OF}{EH}=\frac{FC}{CH}$
Thus,
$\displaystyle \frac{FC}{CH}=\frac{1}{2}$
Thus,
$\displaystyle FC=\frac{1}{2}CH$
Thus,
$\displaystyle CH=2FC$
Thus,
$\displaystyle CH=2(14)=28$
Then,
$\displaystyle HF=CH-FC=14$
Then,
$\displaystyle BH+HF=26$
Thus,
$\displaystyle BH+14=26$
Thus,
$\displaystyle BH=12$
Finally Pythagorean theorem,
$\displaystyle BH^2+HE^2=BE^2$
Thus,
$\displaystyle (12)^2+HE^2=(37)^2$
Thus,
$\displaystyle 144+HE^2=1369$
Thus,
$\displaystyle HE^2=1225$
Thus,
$\displaystyle HE=\sqrt{1225}=35$

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 $\displaystyle T_EX$ faster than it
takes to decipher the abreviation.

RonL