Question

somone help

Answer 1

this one I have no idea how to do

Answer 2

First, ignore the term polygon. This is obviously a triangle, way easier than any other polygon. :)

Answer 3

I thought it was 5*4=20 but, that doesn't seem right

Answer 4

Not quite. Just one second :)

Answer 5

Are you ready? Tag me when you are!!

Answer 6

yes @asett

Answer 7

Okay, because the main triangle is split into two smaller triangles, we know (through trig rules I can't remember) that both slanting sides of the man triangle has a length of 5 units. Good so far?

Answer 8

yes @asett

Answer 9

So, then, using the Pythagorean theorem, that the side with the hash through it has a measure of 3, and since there is two of them and they are exactly the same, we know that the base of the main triangle has a measure of 6. Therefore, we have the length of our three sides: 5+5+6!!

Answer 10

16

Answer 11

@asett