Question

heellpppppp GEOMETRYYY

Answer 1

awww i hate this but i will help lmfao

Answer 2

thank you taz <3

Answer 3

anytime

Answer 4

i think its three but i would check wit other people to thnx and yw

Answer 5

alrighty thanks

Answer 6

The final equation came out to be

AB+ED=x+4

Cant figure out after that. Maybe it gives you a clue :)

Answer 7

@mrgenius i dont get it

Answer 8

GOT IT !!!! THE ANSWER IS 2

Answer 9

DO YOU NEED EXPLANATION ? or you ok with the answer itself?

Answer 10

Google intersecting secant theorem.

\[BC^2 = (CD)(CE)\]

Answer 11

We know BC, CD, and CE.

This converts the problem into a quadratic formula.

Answer 12

@queelius soooo is it 2 or 3

Answer 13

its definetely 2 dear

Answer 14

I just calculated it. My approach didn't produce a reasonable answer.

Answer 15

@queelius You need to assume that AB and ED are of same length, or else you wont be able to solve it.

Answer 16

it was 2

Answer 17

MrGenius, tricky question. And, yes, I wasn't making that assumption.

Btw, I realized why my approach failed: I was using the wrong formula.

Answer 18

hehe told you, its really tricky ! I LOVED solving this. Sometimes when you feel like you are trapped, always use the "assuming" formula :)

Answer 19

thanks guys

Answer 20

MrGenius, well, I didn't assume AB=DE because, based on the figure, they aren't equal.

Answer 21

ED's perpendicular distance to F is less than AB's.

Answer 22

You must assume, and not see the lines as real calculated figure

Answer 23

When I assumed AB=ED, then AB=ED=13, which produces non-sensical answers. How did you solve it?

Answer 24

@mrgenius

Answer 25

Assume AB=ED=y

First Equation,

AC=AB+BC
12=x+1+y
11=x+y........................(1)

Second Equation,

EC=ED+DC
9=2x+y.........................(2)

Adding (1) and (2)

x=2

Answer 26

got it ? @queelius

Answer 27

x=-2, y=13

Answer 28

Let's plug in x = 2. 9=2(2)+y, 11=2+y => y=5, y=9, inconsistent. x=-2 is consistent.

Answer 29

Here's how you must solve it.

Secant-secant theorem: BC * AC = DC * EC

Answer 30

omg !!!!!!!!!!!! i remember this formula, and yea i forgot about the 'minus'

Answer 31

I had to Google the formula; I knew there had to be something that expressed the relationship we were after. :)

Answer 32

yes, so was i. But couldnt go on google as I was looking for quick solution. Thanks for the info

Answer 33

Aye, well, anyway, the right answer was given, but for the wrong reasons. It's always interesting when that happens. :)

Answer 34

That has saved me on many exams, but in my school days.

Answer 35

but in my school days=back in my school days

Answer 36

yes, but i believe majority of people dont really care about the approach. they are least bother to learn, they just want a right answer. I better have a girls pic to attract more number of fans lol

Answer 37

Eh, I'm not really trying to acquire fans. I come here to help and to try to find interesting problems to work on.

Answer 38

But, yeah, a girls pic would help. I doubt my dog pic is winning me any favors.

Answer 39

I just noticed your image.

Answer 40

I much prefer yours to any girl pic.

Answer 41

Hard to read though. :)

Answer 42

I dont want more fans either, but I just noticed that a lade as profile pic would only do good. The dog looks male so no...lol. I enjoy solving problems and its like a mental workout for me. Well the picture isnt gonna stop what is destined, lets just pray and hope for good.

Answer 43

i meant Lady*

Answer 44

It's a thorny problem, the Israeli/palestine situation. I don't have any answers.

Answer 45

That's why I prefer more objective problems, like math. :) And the math problem was also tricky, but solvable. :) See ya around.

Answer 46

Agree.

Yeah see you around on other questions haha