A quarter circle with four chords. What is the proportion purple : gold?
Tag: area
Missing pieces
A rectangle is divided in six similar triangles. What is the proportion green : yellow : red : blue?
The root cause
A square and an equilateral triangle are divided in several polygons. What is the proportion yellow : blue?
The holy number
An equilateral triangle and several line segments. What fraction is purple?
The Transamerica Pyramid
Two squares inscribed in a triangle. What fraction of its area is coloured?
The odd couple
A semicircle with two inscribed triangles The tangency points of the incircle of the bigger triangle are shown. What is the triangle area proportion orange : blue?
Three squares are placed as shown. What fraction of the total area is green?
The turning point
Two isosceles triangles share a vertex. What is the maximum of their area proportion red/green?
The obstructed view
A rectangle and two squares of side length a and b respectively. What is the red area in terms of a and b?
Mickey Mouse
Three regular pentagons and two extended sides. What fraction of the total area is red?