Question

What is the length of line segment ED?

Answer 1

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

Answer 2

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

Answer 3

yep. do that to get your answer

Answer 4

is this multiple choice or no ?

Answer 5

You cannot, since it is not a right triangle

Answer 6

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

Answer 7

its a triangle inside of a circle

Answer 8

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

Answer 9

by the picture it looks like it is the diameter

Answer 10

yeah i think its the diameter

Answer 11

i just have no clue how to solve this thing

Answer 12

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

Answer 13

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

Answer 14

i did and i got 7,835?

Answer 15

mmm I got something else

Answer 16

@mcfizzy321 i did and it was blank

Answer 17

wait is it 62.5?

Answer 18

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

Answer 19

i got 63.

Answer 20

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

Answer 21

jk wrong thing

Answer 22

63 was wrong for me

Answer 23

do what @jdoe0001 put up

Answer 24

i did and still got it wrong oh well

Answer 25

i must be doing something wrong again like always

Answer 26

i'm just going to submit this quiz

Answer 27

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

Answer 28

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