Question

Polygon question #7

Answer 1

this one looks quite difficult too.

Answer 2

Hope that it just 'looks' difficult, but not difficult to solve :(

Answer 3

6

Answer 4

damn pretty sure.

Answer 5

o.o Right!!!!!

Answer 6

Time for hint~~~

Answer 7

use similarity + ratios (of area)

usually when dimensions of similar objects are increased, then their area is affected by square of the proportion of the side increased.

Answer 8

Hmm... I think I got it..
I did it like this;
2x5 - 2x2 = 10 -4 =6
Don't ask me why :S

Answer 9

quite not.

Answer 10

you will find the proportionality constant when you take square root of the ratios of the areas ... rest you know.

Answer 11

Yup, thanks...

Answer 12

yw