Question

Find the value for X. (Geometry)

Answer 1

@e.mccormick ?

Answer 2

@phi ?

Answer 3

do you see the little triangle ?

Answer 4

Yeah

Answer 5

do you see the big triangle that the little triangle is inside of ?

the big triangle's bottom side is 2 times bigger than the little triangle's bottom side (notice the marks that show the little triangle's bottom is ½ of whole bottom line)

Answer 6

Okay, yes I see that

Answer 7

the big triangle's top is 2 times bigger than the little triangle's top.

any guess how big the big's triangle's left side is , compared to the little triangle's left side?

Answer 8

Umm, Is it 8?

Answer 9

The idea is the big triangle's left side is 2 times bigger than the little triangle's left side.

Answer 10

http://www.regentsprep.org/Regents/math/geometry/GP10/MidLineL.htm

Answer 11

Okay, so would I divide by two, or what exactly are you getting at?

Answer 12

one reason to study math, is to make people think.

here is what you know
16 is the big triangle's side
2x-6 is the little triangle's side

16 is 2 times bigger than the little side
16 = 2 * (2x-6)

now we have an equation. Can you solve it for x?

Answer 13

Oh my god! Yes! Thank you, that didn't click until now!

Answer 14

x=7 right?

Answer 15

yes

Answer 16

Thank you very much for all of the help :)

Answer 17

yw