What fraction of the square is pink colored?
Geometry
Level
3
What fraction of the square is pink colored?
(the lines are the square diagonal and the half square diagonal)
1/3
3/8
1/4
4/9
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
The pink triangle and the superior triangle have the same angles. That mean the pink one has all the sides multiplied by 2. That mean pink triangle high is 2/3 of the square side. And finally, area = ( L * 2/3 L ) /2 = 1/3 L^2