Question

May you help me on this problem?
@jim_thompson5910

Answer 1

@jim_thompson5910

Answer 2

how far did you get?

Answer 3

anywhere at all?

Answer 4

I read it , but I don't understand it.

Answer 5

which part are you stuck on?

Answer 6

*cough*

Answer 7

ditto

Answer 8

O.o ?

Answer 9

I think in general the whole thing is confusing me.

Answer 10

so all of the letters on the diagram just overwhelms you?

Answer 11

Let's step through Gina's proof. Do you understand the first line of her proof?

Answer 12

Yes.
Where did the 4 come from?

Answer 13

you mean in 4ab?

Answer 14

Yes.

Answer 15

you have a good eye to spot that error, what should that 4ab instead?

Answer 16

2ab , not 4ab !

Answer 17

very good

Answer 18

so each "4ab" in Gina's proof should be 2ab

Answer 19

Each triangle is (1/2)*ab

4 of them gives you 4*(1/2)*ab = 2ab and not 4ab

Answer 20

-so we know Gina is incorrect. :)

Answer 21

yes

Answer 22

Step 1 & 2 of Sean's proof are correct.

Answer 23

so far, so good

Answer 24

Gina is incorrect; Sean is correct.

Answer 25

good