A rectangle and several triangles. The orange triangle has the same area as the green trapezium. What’s the total coloured fraction?
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The paper hat
Tag: fraction
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Whiskey on the rocks
Two squares share a vertex. An isosceles triangle connects three others. What fraction is blue?
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Radioactive material
A circle divided into six congruent sectors. A smaller concentric circle of radius one quarter of the large one. What fraction is black?
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The bird’s-eye tipi
A regular hexagon with triangles to an internal point. What fraction is shaded?
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The distant Alp
A rectangle containing five triangles. What fraction is brown?
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The white flags
Three congruent squares and three shared vertices. What fraction is blue?
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The dark side
A quarter circle containing two touching semicircles cut by a chord. What fraction is brown?
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The carambole
Three touching congruent circles inscribed in an equilateral triangle. A small equilateral triangle inscribed in the centre space. What fraction is blue?
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The star of Bethlehem
Two concentric equilateral triangles with parallel sides. What fraction is orange?
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The bowtie
A square and two congruent isosceles triangles with variable top angle. What is the maximum fraction shaded?