#1**+1 **

A regular hexagon is comprised of six equilateral triangles. The "base" of each triangle is just 10 cm (in this case) and the "height" is sqrt(10^{2} - 5^{2}).

Can you take it from here?

Alan
Apr 4, 2017

#2**0 **

I understood the first part but Im confused at "is sqrt(10^2 - 5^2)". Is that the formula to solve?

Guest Apr 4, 2017

edited by
Guest
Apr 4, 2017

#3**+1 **

sqrt(10^{2} - 5^{2}) → sqrt(100 - 25) → sqrt(75) → 5*sqrt(3)

This is the height of the black(?) line going from the centre to the side in your picture.

Alan
Apr 4, 2017

#5**0 **

So the two red lines and the black line make a triagnle that I solve the area for??? Sorry Im very confused now.

Guest Apr 4, 2017