The triangle trio

Three triangles, one of which is right and one is isosceles, form a large triangle. Two side lengths are given. What fraction of the total area is red?

Scroll down for a solution to this problem.


A fraction of 4/15 is red.

Solution by Dr Rick.


The isosceles trio
Who’s doing it right
They are having a good time
Until the sun will shine
They are torned
By angles
And by sides
They close their right angles
The trio makes the law
They want to put things in order
All three living on the border
A mess, a big unorder


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