Question

The polygons are similar, but no necessarily drawn to scale. Find the value of x. Show your work.

Answer 1

If you notice, all the sides are being multiplied by a factor of 4.

that means that

4*[that side] = x-3

Answer 2

4*2.5 = 10
10 = x-3

Answer 3

if the whole side is 10, and the side is x-3, what is x?

Answer 4

Sorry, I'm being vague.

I'll try and re explain it.
\[\huge 4*2.5 = (x-3)\]
that x-3 is the whole side. You can just solve for x here

Answer 5

totes wrong
Start by multiplying 2,5 and and 4, what does that give you?

Answer 6

10 = x - 3, solve for x

Answer 7

You've solved for x, hooray

Answer 8

btw in case you don't see how I got the 4, you set up a proportion like so:

Answer 9

You either look at the ratio of 16:4 and divide that, till you get 4:1
or you can use this: \[\huge \frac{ 16 }{ 4 } = \frac{ x-3 }{ 2.5 }\]

Answer 10

Yeah post another question and tag me there