What is the length of line segment ED?

- anonymous

What is the length of line segment ED?

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- anonymous

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- anonymous

i think you can do the Pythagorean theorem, you know what im talking about ?

- anonymous

a^2 + B^2=c^2?

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## More answers

- anonymous

yep. do that to get your answer

- anonymous

is this multiple choice or no ?

- anonymous

You cannot, since it is not a right triangle

- anonymous

no its not multiple choice it just asks me What is the length of line segment ED?

- anonymous

its a triangle inside of a circle

- anonymous

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- anonymous

if DF is a diameter then it is aright angled triangle.

- anonymous

by the picture it looks like it is the diameter

- anonymous

yeah i think its the diameter

- anonymous

i just have no clue how to solve this thing

- jdoe0001

as @surjithayer said, that is, Thales' theorem -> http://www.mathopenref.com/thalestheorem.html

- jdoe0001

so.. since it's a right triangle
knock yourself out with the "pyghatorean theorem" :)

- anonymous

i did and i got 7,835?

- anonymous

mmm I got something else

- anonymous

@mcfizzy321 i did and it was blank

- anonymous

wait is it 62.5?

- anonymous

i'm kinda in the middle of a test so...could someone just tell me the answer please?

- anonymous

i got 63.

- jdoe0001

|dw:1437179218568:dw| \(\bf \textit{pythagorean theorem}=c^2=a^2+b^2\implies c^2-b^2=a^2\\ \quad \\\implies \sqrt{c^2-b^2}=a
\\ \quad \\
\qquad
\begin{cases}
c=65\\
b=60
\end{cases}\implies \sqrt{65^2-60^2}=a\)

- anonymous

jk wrong thing

- anonymous

63 was wrong for me

- anonymous

do what @jdoe0001 put up

- anonymous

i did and still got it wrong oh well

- anonymous

i must be doing something wrong again like always

- anonymous

i'm just going to submit this quiz

- anonymous

im still kind of curious to know though what was the answer?

- anonymous

\[\sqrt{65^2-60^2}=\sqrt{\left( 65-60 \right)\left( 65+60 \right)}=\sqrt{5*125}=\sqrt{5*5*25}=25\]

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