Show equality of the green and orange square playing field areas.
Tag: area
Vanishing point II
Six squares and four coloured triangles. What is red : blue : yellow : green?
Mind the steps
Three similar rectangles and a line segment. Express red in terms of blue and green.
In times out
What is the area of the green rectangle, which has sides tangent to the incircle and circumcircle of a triangle with side lengths a, b, c.? (Write the answer as a multiple of a quotient of two elementary symmetric functions in a, b, c.)
Four six four
A regular hexagon and two similar rectangles. What fraction is green?
Domino day II
Two large congruent rectangles share a vertex and contain two coloured rectangles. What is red : blue?
Peeping out II
A unit square and a rectangle touching three square sides and passing through the midpoint of the upper side. What is the minimal blue area?
Giant’s shoulder II
Three equilateral triangles share three vertices. What is blue : red?
Peeping out
A unit square and a rectangle. What is the blue area?
Pythagoras times three
Three squares on a grid. What is the ratio of the areas red : green : purple?